update_flash -c returns 'success' before the firmware is actually committed

[Steve Langasek]

Committing a firmware update with update_flash returns immediately:

# update_flash -c
Success: Committed temporary firmware image.
#

However, inspection shows that the firmware image is not committed yet; rather, it's been scheduled but is still being copied:

# update_flash -v -f 01TV810_061_054.img
info: Current Temporary side will be committed to
Permanent side before being replaced with the new
image.

Projected Flash Update Results:
Current T Image: TV810_061
Current P Image: TV810_037
New T Image: TV810_061
New P Image: TV810_061
#

Looking in ASM shows:

Requestor: 0x9500
Operation: Commit
Status: Incomplete
Current Side: T
Start Date: 20140908
Start Time: 2342
Start Cur Side: fips810/b0721a_1402.810
Start Other Side: fips810/b0422b_1417.810
End Date: 0
End Time: 0000
End Cur Side:
End Other Side:
PT Swap: 0x0

update_flash really ought not say "committed" until it's actually been committed.