Disable new LLVM pass manager for HWASan.

Current Android toolchain does not support hwasan with new pm.

Bug: 135298400
Test: manual, inspect the binaries for calls to __hwasan_init
Change-Id: I126c59e6ecabc3a1699e1bf34c546568b6e8a21f
diff --git a/cc/sanitize.go b/cc/sanitize.go
index fdda7be..0af0659 100644
--- a/cc/sanitize.go
+++ b/cc/sanitize.go
@@ -40,7 +40,8 @@
 	hwasanCflags = []string{"-fno-omit-frame-pointer", "-Wno-frame-larger-than=",
 		"-mllvm", "-hwasan-create-frame-descriptions=0",
 		"-mllvm", "-hwasan-allow-ifunc",
-		"-fsanitize-hwaddress-abi=platform"}
+		"-fsanitize-hwaddress-abi=platform",
+		"-fno-experimental-new-pass-manager"}
 
 	cfiCflags = []string{"-flto", "-fsanitize-cfi-cross-dso",
 		"-fsanitize-blacklist=external/compiler-rt/lib/cfi/cfi_blacklist.txt"}