Refresh RaspberryPi BSP

[Paolo Pisati]

BugLink: https://bugs.launchpad.net/bugs/1831219
BugLink: https://bugs.launchpad.net/bugs/1825235

Impact:

Since the release of Ubuntu Disco, the upstream RaspberryPI BSP has received a lot of bug fixes and improvements over the release imported in disco/raspi2.

Among the fixes, it corrects a patological 'fictious high load situation' we inherithed from upstream:

https://github.com/raspberrypi/linux/issues/2881

BugLink: https://bugs.launchpad.net/bugs/1825235

Fix:

As part of our SRU process, remove the imported RaspberryPI BSP (first patch in the series) and do a fresh import of the latest available revision

Regression:

Since it contains many changes, it comes with regression risks, but so does every stable update series we apply

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux-raspi2 - 5.0.0-1013.13

---------------
linux-raspi2 (5.0.0-1013.13) disco; urgency=medium

  * linux-raspi2: 5.0.0-1013.13 -proposed tracker (LP: #1834884)

  * [SRU][B/B-OEM/C/D/OEM-OSP1] Add RTL8822 wifi driver rtw88 (LP: #1831828)
    - raspi2: [Config] Add realtek wifi RTW88 support

  * AX88772A USB to Ethernet dongle doesn't work (LP: #1834114)
    - raspi2: [Config] Rename ASIX module

  * Load average inexplicably high with 5.0 kernel on rpi (LP: #1825235) //
    Refresh RaspberryPi BSP (LP: #1831219)
    - raspberrypi: remove the old RaspberryPi BSP
    - arm: partially revert 702b94bff3c50542a6e4ab9a4f4cef093262fe65
    - Revert "rtc: pcf8523: properly handle oscillator stop bit"
    - smsx95xx: fix crimes against truesize
    - smsc95xx: Experimental: Enable turbo_mode and packetsize=2560 by default
    - Allow mac address to be set in smsc95xx
    - Protect __release_resource against resources without parents
    - irq-bcm2836: Prevent spurious interrupts, and trap them early
    - irq-bcm2836: Avoid "Invalid trigger warning"
    - irqchip: bcm2835: Add FIQ support
    - irqchip: irq-bcm2835: Add 2836 FIQ support
    - spi: spidev: Completely disable the spidev warning
    - dmaengine: bcm2835: Load driver early and support legacy API
    - firmware: Updated mailbox header
    - rtc: Add SPI alias for pcf2123 driver
    - watchdog: bcm2835: Support setting reboot partition
    - reboot: Use power off rather than busy spinning when halt is requested
    - bcm: Make RASPBERRYPI_POWER depend on PM
    - Register the clocks early during the boot process, so that special/critical
      clocks can get enabled early on in the boot process avoiding the risk of
      disabling a clock, pll_divider or pll when a claiming driver fails to
      install propperly - maybe it needs to defer.
    - bcm2835-rng: Avoid initialising if already enabled
    - clk-bcm2835: Mark used PLLs and dividers CRITICAL
    - clk-bcm2835: Add claim-clocks property
    - clk-bcm2835: Read max core clock from firmware
    - clk: bcm2835: Mark GPIO clocks enabled at boot as critical.
    - sound: Demote deferral errors to INFO level
    - Update vfpmodule.c
    - i2c: bcm2835: Add debug support
    - mm: Remove the PFN busy warning
    - ASoC: Add prompt for ICS43432 codec
    - irqchip: irq-bcm2836: Remove regmap and syscon use
    - lan78xx: Enable LEDs and auto-negotiation
    - amba_pl011: Don't use DT aliases for numbering
    - amba_pl011: Round input clock up
    - amba_pl011: Insert mb() for correct FIFO handling
    - amba_pl011: Add cts-event-workaround DT property
    - pinctrl-bcm2835: Set base to 0 give expected gpio numbering
    - Main bcm2708/bcm2709 linux port
    - Add dwc_otg driver
    - bcm2708 framebuffer driver
    - fbdev: add FBIOCOPYAREA ioctl
    - Speed up console framebuffer imageblit function
    - dmaengine: Add support for BCM2708
    - MMC: added alternative MMC driver
    - Adding bcm2835-sdhost driver, and an overlay to enable it
    - vc_mem: Add vc_mem driver for querying firmware memory addresses
    - vcsm: VideoCore shared memory service for BCM2835
    - Add /dev/gpiomem device for roo...