Move "-fdebug-info-for-profiling" flag to device binaries only

We do not profile host binaries. Moving to device binaries only helps
saving some disk space as well as shortening build time.

Test: presubmit
Change-Id: I09afb106d0e2ee250b3bc75d9dfd9cb8b6552c97
diff --git a/cc/config/global.go b/cc/config/global.go
index 0b229be..a340e46 100644
--- a/cc/config/global.go
+++ b/cc/config/global.go
@@ -46,7 +46,6 @@
 
 		"-O2",
 		"-g",
-		"-fdebug-info-for-profiling",
 
 		"-fno-strict-aliasing",
 
@@ -125,6 +124,9 @@
 		"-Werror=sequence-point",
 		"-Werror=format-security",
 		"-nostdlibinc",
+
+		// Emit additional debug info for AutoFDO
+		"-fdebug-info-for-profiling",
 	}
 
 	deviceGlobalCppflags = []string{