arc-mesa-virgl: Hardcode Android SDK API to 28

arc-mesa-virgl currently does not yet support an API level higher than
28, so we need to set a hard limit so we don't break when we try to
build more recent versions of the Android profiles.

BUG=b:160748345
BUG=b:156569377
TEST=`./build_packages --board=rammus-arc-r arc-mesa-virgl`

Cq-Depend: chrome-internal:3144360
Cq-Depend: chromium:2286975
Change-Id: I0f682238668d744148933667720db44d9099ac0c
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/chromiumos-overlay/+/2286749
Tested-by: Morg <morg@chromium.org>
Auto-Submit: Morg <morg@chromium.org>
Reviewed-by: Lepton Wu <lepton@chromium.org>
Commit-Queue: Morg <morg@chromium.org>
diff --git a/media-libs/arc-mesa-virgl/arc-mesa-virgl-20.0.7-r4.ebuild b/media-libs/arc-mesa-virgl/arc-mesa-virgl-20.0.7-r5.ebuild
similarity index 100%
rename from media-libs/arc-mesa-virgl/arc-mesa-virgl-20.0.7-r4.ebuild
rename to media-libs/arc-mesa-virgl/arc-mesa-virgl-20.0.7-r5.ebuild
diff --git a/media-libs/arc-mesa-virgl/arc-mesa-virgl-20.ebuild b/media-libs/arc-mesa-virgl/arc-mesa-virgl-20.ebuild
index c5da32e..095302a 100644
--- a/media-libs/arc-mesa-virgl/arc-mesa-virgl-20.ebuild
+++ b/media-libs/arc-mesa-virgl/arc-mesa-virgl-20.ebuild
@@ -35,6 +35,9 @@
 	IUSE_VIDEO_CARDS+=" video_cards_${card}"
 done
 
+# TODO(b/160748345): Remove hardcoded ARC_PLATFORM_SDK_VERSION when fixed.
+ARC_PLATFORM_SDK_VERSION=28
+
 IUSE="${IUSE_VIDEO_CARDS}
 	android_aep android-container-nyc -android_gles2 -android_gles30
 	+android_gles31 -android_gles32	-android_vulkan_compute_0
diff --git a/media-libs/arc-mesa-virgl/arc-mesa-virgl-9999.ebuild b/media-libs/arc-mesa-virgl/arc-mesa-virgl-9999.ebuild
index e4da457..4cf8e59 100644
--- a/media-libs/arc-mesa-virgl/arc-mesa-virgl-9999.ebuild
+++ b/media-libs/arc-mesa-virgl/arc-mesa-virgl-9999.ebuild
@@ -32,6 +32,9 @@
 	IUSE_VIDEO_CARDS+=" video_cards_${card}"
 done
 
+# TODO(b/160748345): Remove hardcoded ARC_PLATFORM_SDK_VERSION when fixed.
+ARC_PLATFORM_SDK_VERSION=28
+
 IUSE="${IUSE_VIDEO_CARDS}
 	android_aep android-container-nyc -android_gles2 -android_gles30
 	+android_gles31 -android_gles32 -android_vulkan_compute_0