[MTE] unset colliding sanitizers for mutators

Bug: 174878242
Test: m device-tests with SANITIZE_TARGET=memtag_stack
Change-Id: Ia8659a90c6c1efd9109324e6c46748b434cbfd24
diff --git a/cc/sanitize.go b/cc/sanitize.go
index 436b149..0b47f0e 100644
--- a/cc/sanitize.go
+++ b/cc/sanitize.go
@@ -881,8 +881,12 @@
 	switch t {
 	case Asan:
 		sanitize.Properties.Sanitize.Address = bPtr
+		// For ASAN variant, we need to disable Memtag_stack
+		sanitize.Properties.Sanitize.Memtag_stack = nil
 	case Hwasan:
 		sanitize.Properties.Sanitize.Hwaddress = bPtr
+		// For HWAsan variant, we need to disable Memtag_stack
+		sanitize.Properties.Sanitize.Memtag_stack = nil
 	case tsan:
 		sanitize.Properties.Sanitize.Thread = bPtr
 	case intOverflow:
@@ -895,6 +899,7 @@
 		sanitize.Properties.Sanitize.Memtag_heap = bPtr
 	case Memtag_stack:
 		sanitize.Properties.Sanitize.Memtag_stack = bPtr
+		// We do not need to disable ASAN or HWASan here, as there is no Memtag_stack variant.
 	case Fuzzer:
 		sanitize.Properties.Sanitize.Fuzzer = bPtr
 	default: