app: aboot: Fix loading of device tree from RAM
app: aboot: Fix loading of device tree from RAM

fastboot boot boot.img fails on some targets, as
Kernel/atags address on RAM overlaps with scratch
address for these targets. Due to which memmove
operation on the kernel address overwrites the
device tree contents in the RAM. To avoid this
issue change the order in which device tree from
boot image & appended device tree are searched.

CRs-Fixed: 469299
Change-Id: I704dc2c2f2b903fce26003535b8b5eec891a9559

Foxda-Tech/polaris-bootable-bootloader-lk,M1cha/lktris,t2m-foxfone/android_kernel_lk,CanarySolutions/little-kernel,lg-devs/g2-bootloader,M1cha/android_bootable_bootloader_lk,M1cha/lktris,mozilla-b2g/fairphone2_kernel_lk,Foxda-Tech/argo8-bootable-bootloader-lk,jsr-d10/android_bootable_bootloader_lk,Foxda-Tech/argo8-bootable-bootloader-lk,Redmi-dev/android_bootable_lk,jsr-d10/android_bootable_bootloader_lk,efidroid/lk,chirayudesai/android_bootable_bootloader_lk,mozilla-b2g/kernel_lk,mozilla-b2g/kernel_lk,idor/dk50-bootable_bootloader_lk,jbott/lk_gee,lg-devs/g2-bootloader,t2m-foxfone/kernel_lk,lg-devs/g2-bootloader,t2m-foxfone/kernel_lk,detule/lk-g2-spr,CanarySolutions/little-kernel,chirayudesai/android_bootable_bootloader_lk,t2m-foxfone/kernel_lk,CanarySolutions/little-kernel,M1cha/lktris,M1cha/android_bootable_bootloader_lk,Redmi-dev/android_bootable_lk,chirayudesai/android_bootable_bootloader_lk,Redmi-dev/android_bootable_lk,efidroid/lk,idor/dk50-bootable_bootloader_lk,efidroid/lk,t2m-foxfone/android_kernel_lk,jsr-d10/android_bootable_bootloader_lk,Foxda-Tech/argo8-bootable-bootloader-lk,Foxda-Tech/polaris-bootable-bootloader-lk,chirayudesai/android_bootable_bootloader_lk,mozilla-b2g/kernel_lk,efidroid/lk,Foxda-Tech/polaris-bootable-bootloader-lk,M1cha/android_bootable_bootloader_lk,mozilla-b2g/kernel_lk,detule/lk-g2-spr,detule/lk-g2-spr,Redmi-dev/android_bootable_lk,Foxda-Tech/argo8-bootable-bootloader-lk,chirayudesai/android_bootable_bootloader_lk,M1cha/lktris,CanarySolutions/little-kernel,idor/dk50-bootable_bootloader_lk,M1cha/android_bootable_bootloader_lk,jbott/lk_gee,mozilla-b2g/fairphone2_kernel_lk,efidroid/lk,t2m-foxfone/kernel_lk,idor/dk50-bootable_bootloader_lk,mozilla-b2g/kernel_lk,detule/lk-g2-spr,idor/dk50-bootable_bootloader_lk,Foxda-Tech/polaris-bootable-bootloader-lk,M1cha/lktris,M1cha/android_bootable_bootloader_lk,lg-devs/g2-bootloader,t2m-foxfone/android_kernel_lk,mozilla-b2g/fairphone2_kernel_lk,jsr-d10/android_bootable_bootloader_lk,t2m-foxfone/kernel_lk,jsr-d10/android_bootable_bootloader_lk,mozilla-b2g/fairphone2_kernel_lk,Foxda-Tech/argo8-bootable-bootloader-lk,t2m-foxfone/android_kernel_lk,Redmi-dev/android_bootable_lk,M1cha/android_bootable_bootloader_lk,jbott/lk_gee,jbott/lk_gee,t2m-foxfone/android_kernel_lk,detule/lk-g2-spr,CanarySolutions/little-kernel,lg-devs/g2-bootloader,jbott/lk_gee,mozilla-b2g/fairphone2_kernel_lk,Foxda-Tech/polaris-bootable-bootloader-lk