app: aboot: Read device info from mmc on NS device
app: aboot: Read device info from mmc on NS device

For platforms that support rpmb there is no fallback option to read
device info if the device is non-secure. For non-secure then read device
info from gpt partition.

Change-Id: Ie131f2fa499ef0593ff3541acf330bfdcbd4d21b

efidroid/lk,efidroid/lk,efidroid/lk,efidroid/lk,efidroid/lk