aboot: remove default commandline
aboot: remove default commandline

The default commandline of "mem=100M console=null" is useless
and can't possibly work in most cases. This especially breaks
when using device tree. So, remove default command line and
always use the boot image one.

Change-Id: Iffb9ec66427434b218ab8dcae170528134048fa2
Signed-off-by: Dima Zavin <bed3f98d0a894717be46c58ffa90302af9946688@android.com>
Signed-off-by: Channagoud Kadabi <1089e5c6cde6f036a0cb0cf40d04599d05a0871c@codeaurora.org>

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