[Backport] block device mapping timeout in compute

[Vitaly Sedelnik]

This bug is created to track backporting of upstream fix for https://bugs.launchpad.net/nova/+bug/1332382
The backport should be done to 5.1-updates and 5.1.1-upadtes branches only as 6.0+ do have this fix already

Original description:
=================
When booting instances passing in block-device and increasing the volume size , instances can go in to error state if the volume takes longer to create than the hard code value set in:

nova/compute/manager.py

  def _await_block_device_map_created(self, context, vol_id, max_tries=180,
                                        wait_between=1):

Here is the command used to repro:

nova boot --flavor ca8d889e-6a4e-48f8-81ce-0fa2d153db16 --image 438b3f1f-1b23-4b8d-84e1-786ffc73a298
--block-device source=image,id=438b3f1f-1b23-4b8d-84e1-786ffc73a298,dest=volume,size=128
--nic net-id=5f847661-edef-4dff-9f4b-904d1b3ac422 --security-groups d9ce9fe3-983f-42a8-899e-609c01977e32
Test_Image_Instance

max_retries should be made configurable.

Looking through the different releases, Grizzly was 30, Havana was 60 , IceHouse is 180.

[Denis Meltsaykin (dmeltsaykin)]

5.1.1 has already these changes

[Denis Meltsaykin (dmeltsaykin)]

The fix for 5.1-update is already merged here https://review.fuel-infra.org/#/c/7410/