aboot: recovery: replace the string comparision api
aboot: recovery: replace the string comparision api

fix to replace the strncmp with strcmp to avoid wrong code
execution based on wrong input size comparision.

CRs-Fixed: 701553
Change-Id: Ied4a38c094b8f7846e2ca81c92953ba940d92b74

Foxda-Tech/polaris-bootable-bootloader-lk,efidroid/lk,efidroid/lk,efidroid/lk,Foxda-Tech/polaris-bootable-bootloader-lk,efidroid/lk,CanarySolutions/little-kernel,Foxda-Tech/polaris-bootable-bootloader-lk,Foxda-Tech/polaris-bootable-bootloader-lk,CanarySolutions/little-kernel,CanarySolutions/little-kernel,efidroid/lk,CanarySolutions/little-kernel,CanarySolutions/little-kernel,Foxda-Tech/polaris-bootable-bootloader-lk