AArch64: Add suspend check in managed code.

TODO: Remove x19 in the frame in runtime, generic jni, compiled jni.

Change-Id: Ibdc292c9e7adb3a5d3eff353c22f60ffc101f549
diff --git a/compiler/dex/frontend.cc b/compiler/dex/frontend.cc
index 9bad736..c072959 100644
--- a/compiler/dex/frontend.cc
+++ b/compiler/dex/frontend.cc
@@ -692,7 +692,7 @@
 // S : short
 // C : char
 // I : int
-// L : long
+// J : long
 // F : float
 // D : double
 // L : reference(object, array)