GpuService: Add cmdFeatureOverrides

Add 'cmd gpu featureOverrides' to output the current FeatureOverrides
that were parsed by FeatureOverrideParser.

The feature overrides are intended to be used by
getPlatformDisplayAngle() in a later CL, to modify the behavior of
ANGLE.

Bug: 372694741
Test: cmd gpu featureOverrides
Flag: com.android.graphics.graphicsenv.flags.feature_overrides
Change-Id: I04c142fc6e0fd920315e41b36954c45cf032afb3
diff --git a/services/gpuservice/Android.bp b/services/gpuservice/Android.bp
index 01287b0..74e354f 100644
--- a/services/gpuservice/Android.bp
+++ b/services/gpuservice/Android.bp
@@ -39,6 +39,7 @@
 cc_defaults {
     name: "libgpuservice_defaults",
     defaults: [
+        "aconfig_lib_cc_static_link.defaults",
         "gpuservice_defaults",
         "libfeatureoverride_deps",
         "libgfxstats_deps",