graphics: swangle: Add debug.hwui.renderer=skiagl property

It fixes the visual artifacts and glitches we see on
Dragonboards booting with software rendering.

Change-Id: If5f106114662ed2c46cf28cda585ec6f34898758
Suggested-by: Jason Macnak <natsu@google.com>
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
diff --git a/shared/graphics/swangle/device.mk b/shared/graphics/swangle/device.mk
index 0eebc66..6f85a0e 100644
--- a/shared/graphics/swangle/device.mk
+++ b/shared/graphics/swangle/device.mk
@@ -48,4 +48,5 @@
     frameworks/native/data/etc/android.software.vulkan.deqp.level-2021-03-01.xml:$(TARGET_COPY_OUT_VENDOR)/etc/permissions/android.software.vulkan.deqp.level.xml
 
 PRODUCT_VENDOR_PROPERTIES += \
+    debug.hwui.renderer=skiagl \
     ro.hardware.vulkan=pastel