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/services/surfaceflinger/Android.bp b/services/surfaceflinger/Android.bp
index 9885352..f20bfe1 100644
--- a/services/surfaceflinger/Android.bp
+++ b/services/surfaceflinger/Android.bp
@@ -25,7 +25,7 @@
     name: "libsurfaceflinger_defaults",
     defaults: [
         "surfaceflinger_defaults",
-        "skia_deps",
+        "skia_renderengine_deps",
     ],
     cflags: [
         "-DLOG_TAG=\"SurfaceFlinger\"",