Export CC HWASan sanitizer type

We need this so that HWASan sanitizer mutator in CC can sanitize Rust.

Bug: 180495975
Test: m nothing
Change-Id: I2c9eb248df4e55a33f5d45083e91588f4c8e3e94
diff --git a/cc/cc.go b/cc/cc.go
index 1ce83a9..9176bc3 100644
--- a/cc/cc.go
+++ b/cc/cc.go
@@ -56,8 +56,8 @@
 		ctx.TopDown("asan_deps", sanitizerDepsMutator(Asan))
 		ctx.BottomUp("asan", sanitizerMutator(Asan)).Parallel()
 
-		ctx.TopDown("hwasan_deps", sanitizerDepsMutator(hwasan))
-		ctx.BottomUp("hwasan", sanitizerMutator(hwasan)).Parallel()
+		ctx.TopDown("hwasan_deps", sanitizerDepsMutator(Hwasan))
+		ctx.BottomUp("hwasan", sanitizerMutator(Hwasan)).Parallel()
 
 		ctx.TopDown("fuzzer_deps", sanitizerDepsMutator(Fuzzer))
 		ctx.BottomUp("fuzzer", sanitizerMutator(Fuzzer)).Parallel()