Use a mini version of libskia in renderengine

Bug: 167743764
Test: ls -lh surfaceflinger

With this change, surfaceflinger is 6.0M, down from 7.4M.

Depends on https://skia-review.googlesource.com/c/skia/+/402257

Change-Id: I4161315901a8ea55ae4851eb09508bf28795b551
diff --git a/libs/renderengine/Android.bp b/libs/renderengine/Android.bp
index f395ab4..3ad55bf 100644
--- a/libs/renderengine/Android.bp
+++ b/libs/renderengine/Android.bp
@@ -117,7 +117,7 @@
     include_dirs: [
         "external/skia/src/gpu",
     ],
-    whole_static_libs: ["libskia"],
+    whole_static_libs: ["libskia_renderengine"],
     lto: {
         thin: true,
     },