Switch to the integrated assembler.

Bug: 180548401
Test: mm for hwasan build
Change-Id: Id3852abd0b9c42668146a679de9d15022e5ac0e8
diff --git a/Android.bp b/Android.bp
index e5c3f1a..65bdb62 100644
--- a/Android.bp
+++ b/Android.bp
@@ -34,7 +34,6 @@
             "-Wno-inline-asm",
             "-Wno-implicit-fallthrough",
             "-DNO_DOT_IN_TOOLCHAIN",
-            "-no-integrated-as"
     ],
     rtti: true,
 }