Add optimize_for = CODE_SIZE option to atoms.proto

This fixes code size too large errors when building java proto library.

Bug: 237410860
Bug: 255978693
Test: m platformtestprotos succeeds when adding more atoms
Merged-In: Ie5900ff7607af483a7357a0ee3640603e9697d75
Change-Id: Ie5900ff7607af483a7357a0ee3640603e9697d75
(cherry picked from commit 13fbe09ae2d42ecd8268d7d6446b82328c8894e4)
diff --git a/stats/atoms.proto b/stats/atoms.proto
index 46c971a..851bcbe 100644
--- a/stats/atoms.proto
+++ b/stats/atoms.proto
@@ -17,6 +17,8 @@
 syntax = "proto2";
 
 package android.os.statsd;
+
+option optimize_for = CODE_SIZE;
 option java_package = "com.android.os";
 option java_outer_classname = "AtomsProto";