target: samarium: Add support for new platform subtype
target: samarium: Add support for new platform subtype

Add support for new platform subytpe for cdp interposer

Change-Id: Icc2095a35e3f9fc57328641de8463486aa36aa2b

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