app: aboot: Print cmdline after updating it.
app: aboot: Print cmdline after updating it.

Change-Id: I1aea6a1dbbb87e2afe803013e607c548dab90199

DooMLoRD/android_bootable_bootloader_lk,efidroid/lk,thornbirdblue/codeaurora_lk,detule/lk-g2-spr,M1cha/lktris,M1cha/android_bootable_bootloader_lk,M1cha/android_bootable_bootloader_lk,t2m-foxfone/kernel_lk,t2m-foxfone/android_kernel_lk,thornbirdblue/codeaurora_lk,jbott/lk_gee,Redmi-dev/android_bootable_lk,Foxda-Tech/argo8-bootable-bootloader-lk,chirayudesai/android_bootable_bootloader_lk,M1cha/lktris,Foxda-Tech/argo8-bootable-bootloader-lk,Foxda-Tech/argo8-bootable-bootloader-lk,efidroid/lk,mozilla-b2g/kernel_lk,jbott/lk_gee,mozilla-b2g/kernel_lk,t2m-foxfone/kernel_lk,Foxda-Tech/polaris-bootable-bootloader-lk,idor/dk50-bootable_bootloader_lk,M1cha/android_bootable_bootloader_lk,idor/dk50-bootable_bootloader_lk,detule/lk-g2-spr,mozilla-b2g/fairphone2_kernel_lk,lg-devs/g2-bootloader,CanarySolutions/little-kernel,thornbirdblue/codeaurora_lk,mozilla-b2g/kernel_lk,t2m-foxfone/android_kernel_lk,Foxda-Tech/polaris-bootable-bootloader-lk,M1cha/android_bootable_bootloader_lk,chirayudesai/android_bootable_bootloader_lk,M1cha/lktris,jbott/lk_gee,idor/dk50-bootable_bootloader_lk,mozilla-b2g/kernel_lk,mozilla-b2g/fairphone2_kernel_lk,jbott/lk_gee,CanarySolutions/little-kernel,detule/lk-g2-spr,chirayudesai/android_bootable_bootloader_lk,M1cha/lktris,lg-devs/g2-bootloader,Foxda-Tech/argo8-bootable-bootloader-lk,thornbirdblue/codeaurora_lk,lg-devs/g2-bootloader,DooMLoRD/android_bootable_bootloader_lk,DooMLoRD/android_bootable_bootloader_lk,jsr-d10/android_bootable_bootloader_lk,jsr-d10/android_bootable_bootloader_lk,Redmi-dev/android_bootable_lk,t2m-foxfone/kernel_lk,t2m-foxfone/android_kernel_lk,hanjae/lumiab0,CanarySolutions/little-kernel,chirayudesai/android_bootable_bootloader_lk,jsr-d10/android_bootable_bootloader_lk,lg-devs/g2-bootloader,lg-devs/g2-bootloader,detule/lk-g2-spr,DooMLoRD/android_bootable_bootloader_lk,jsr-d10/android_bootable_bootloader_lk,DooMLoRD/android_bootable_bootloader_lk,mozilla-b2g/fairphone2_kernel_lk,jsr-d10/android_bootable_bootloader_lk,hanjae/lumiab0,Foxda-Tech/argo8-bootable-bootloader-lk,idor/dk50-bootable_bootloader_lk,CanarySolutions/little-kernel,efidroid/lk,Foxda-Tech/polaris-bootable-bootloader-lk,hanjae/lumiab0,Redmi-dev/android_bootable_lk,t2m-foxfone/android_kernel_lk,Foxda-Tech/polaris-bootable-bootloader-lk,hanjae/lumiab0,t2m-foxfone/kernel_lk,hanjae/lumiab0,idor/dk50-bootable_bootloader_lk,M1cha/android_bootable_bootloader_lk,mozilla-b2g/fairphone2_kernel_lk,t2m-foxfone/kernel_lk,Foxda-Tech/polaris-bootable-bootloader-lk,efidroid/lk,M1cha/android_bootable_bootloader_lk,mozilla-b2g/kernel_lk,CanarySolutions/little-kernel,Redmi-dev/android_bootable_lk,mozilla-b2g/fairphone2_kernel_lk,t2m-foxfone/android_kernel_lk,jbott/lk_gee,chirayudesai/android_bootable_bootloader_lk,Redmi-dev/android_bootable_lk,detule/lk-g2-spr,M1cha/lktris,thornbirdblue/codeaurora_lk,efidroid/lk