target: mpq8092: Check reboot reason based on IMEM cookie
target: mpq8092: Check reboot reason based on IMEM cookie

Change-Id: I115112ba9f3e141b4a767c3f6c8511477f612c8b

Foxda-Tech/polaris-bootable-bootloader-lk,Foxda-Tech/argo8-bootable-bootloader-lk,efidroid/lk,Foxda-Tech/argo8-bootable-bootloader-lk,jsr-d10/android_bootable_bootloader_lk,Foxda-Tech/argo8-bootable-bootloader-lk,CanarySolutions/little-kernel,jsr-d10/android_bootable_bootloader_lk,M1cha/android_bootable_bootloader_lk,M1cha/android_bootable_bootloader_lk,M1cha/lktris,jsr-d10/android_bootable_bootloader_lk,efidroid/lk,M1cha/lktris,CanarySolutions/little-kernel,efidroid/lk,Foxda-Tech/argo8-bootable-bootloader-lk,jsr-d10/android_bootable_bootloader_lk,M1cha/android_bootable_bootloader_lk,M1cha/android_bootable_bootloader_lk,CanarySolutions/little-kernel,Foxda-Tech/polaris-bootable-bootloader-lk,M1cha/lktris,CanarySolutions/little-kernel,M1cha/lktris,M1cha/lktris,Foxda-Tech/polaris-bootable-bootloader-lk,M1cha/android_bootable_bootloader_lk,Foxda-Tech/polaris-bootable-bootloader-lk,Foxda-Tech/polaris-bootable-bootloader-lk,efidroid/lk,efidroid/lk,Foxda-Tech/argo8-bootable-bootloader-lk,jsr-d10/android_bootable_bootloader_lk,M1cha/android_bootable_bootloader_lk,CanarySolutions/little-kernel