linaro_swr: A generic build target using software rendering am: b2534ba966 am: c627a70ca5 am: 118f9394db am: a3166e1c98

Original change: https://android-review.googlesource.com/c/device/linaro/dragonboard/+/2606600

Change-Id: Ic54b8b0ecf25e766e298090b2a988d423c37c8ab
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>