build.config: Introduce PREFERRED_USERSPACE

Used to indicate preferred userspace to external scripts which help pack
the kernel images.

Change-Id: Ic6d12f4157df81e9d0b87a552ca1333e955f3b08
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>

build.config.msm.cinder

@@ -19,6 +19,7 @@ BASE_ADDRESS=0x9c300000
 PAGE_SIZE=4096
 DTB_IMG_CREATE=1
 TARGET_HAS_SEPARATE_RD=1
+PREFERRED_USERSPACE=le
 [ -z "${DT_OVERLAY_SUPPORT}" ] && DT_OVERLAY_SUPPORT=0
 
 if [ "${KERNEL_CMDLINE_CONSOLE_AUTO}" != "0" ]; then

build.config.msm.kalama.vm

@@ -17,6 +17,7 @@ BOOT_IMAGE_HEADER_VERSION=3
 BASE_ADDRESS=0x80000000
 PAGE_SIZE=4096
 VM_DTB_IMG_CREATE=1
+PREFERRED_USERSPACE=vm
 
 declare -A MKDTIMGDTBS
 

build.config.msm.waipio.vm

@@ -17,6 +17,7 @@ BOOT_IMAGE_HEADER_VERSION=3
 BASE_ADDRESS=0x80000000
 PAGE_SIZE=4096
 VM_DTB_IMG_CREATE=1
+PREFERRED_USERSPACE=vm
 
 declare -A MKDTIMGDTBS