linaro_swr: A generic build target using software rendering am: b2534ba966 am: c627a70ca5 am: 118f9394db am: a3166e1c98 am: 597f6e59bf

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

Change-Id: Ib363f22eae0de166e98b6af4e96e0dea8ae3ebe1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>