liblog: Enable PGO

Bug: 175367488
Bug: 175205560
Test: liblog-benchmarks
Change-Id: Id88e1639ef3652771bc1cab5ff51767db8c7430d
diff --git a/liblog/Android.bp b/liblog/Android.bp
index 53035f3..32bdde0 100644
--- a/liblog/Android.bp
+++ b/liblog/Android.bp
@@ -138,6 +138,10 @@
         "com.android.runtime",
         // DO NOT add more apex names here
     ],
+    pgo: {
+        sampling: true,
+        profile_file: "logging/liblog.profdata",
+    },
 }
 
 ndk_headers {