Support priority based dumpsys in surface flinger

Call dump with no args when called with CRITICAL priority. Register
service with support for critical priority dumps.

BUG: 31774394

Test: lunch mini_emulator_x86-userdebug && make -j56
Test: adb bugreport ~/tmp.zip
Test: adb shell dumpsys --priority CRITICAL
Test: mmm -j32 frameworks/native/services/utils && \
      adb sync data && adb shell /data/nativetest/prioritydumper_test/prioritydumper_test && \
      adb shell /data/nativetest64/prioritydumper_test/prioritydumper_test && \
      printf "\n\n#### ALL TESTS PASSED ####\n"

Change-Id: Iec35ef8026d4d9346c83bab203bed8524c28bf89
diff --git a/services/surfaceflinger/Android.bp b/services/surfaceflinger/Android.bp
index 4775e4e..64a2a50 100644
--- a/services/surfaceflinger/Android.bp
+++ b/services/surfaceflinger/Android.bp
@@ -1,6 +1,8 @@
 cc_library_static {
     name: "libsurfaceflingerincludes",
     export_include_dirs: ["."],
+    static_libs = ["libserviceutils"],
+    export_static_lib_headers = ["libserviceutils"],
 }
 
 subdirs = ["tests/fakehwc"]
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