2lib/2auxfw_sync: Handle VB2_REQUEST* error codes In normal/secure mode, display is not always available. Hence aux firmware updates request reboot to initialize the display so that slow firmware update screen can be displayed. Since this error is not handled, the concerned firmware slot is marked as failed. This leads to devices in the field not picking FW updates and falling back to old FW slot. Handle VB2_REQUEST* error codes, so that the device reboots to initialize the display. BUG=b:210127173 BRANCH=dedede, volteer, zork, trogdor, keeby TEST=Build and boot to OS in Drawlat. Ensure that the AP + EC + ME + PD FW updates are applied and the system was able to boot to OS successfully - https://paste.googleplex.com/4966135716904960. Signed-off-by: Karthikeyan Ramasubramanian <[email protected]> Change-Id: I2b7bdd830a1141ee59e25204bf4f77adba58b679 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/vboot_reference/+/3350763 Tested-by: Karthikeyan Ramasubramanian <[email protected]> Auto-Submit: Karthikeyan Ramasubramanian <[email protected]> Reviewed-by: Henry Sun <[email protected]> Commit-Queue: Henry Sun <[email protected]>