Merge "Allow disabling LTO on eng"

am: 7f1c57ee33

Change-Id: I349e5e5856d6991fff465a77c5bd6ad938b2b575

android/variable.go

@@ -92,6 +92,9 @@ type variableProperties struct {
 		Eng struct {
 			Cflags   []string
 			Cppflags []string
+			Lto      struct {
+				Never *bool
+			}
 		}
 
 		Pdk struct {