Atomic op cleanup.

Replaced VM-local macros for barrier and CAS calls with the actual
versions provided by cutils.

 ATOMIC_CMP_SWAP(addr,old,new) --> android_atomic_release_cas(old,new,addr)

 MEM_BARRIER --> ANDROID_MEMBAR_FULL

Renamed android_quasiatomic* to dvmQuasiAtomic*.

Didn't change how anything works, just the names.

Change-Id: I8c68f28e1f7c9cb832183e0918d097dfe6a2cac8
diff --git a/vm/native/sun_misc_Unsafe.c b/vm/native/sun_misc_Unsafe.c
index b1f3e83..5294368 100644
--- a/vm/native/sun_misc_Unsafe.c
+++ b/vm/native/sun_misc_Unsafe.c
@@ -106,7 +106,7 @@
 
     // Note: android_atomic_cmpxchg() returns 0 on success, not failure.
     int result =
-        android_quasiatomic_cmpxchg_64(expectedValue, newValue, address);
+        dvmQuasiAtomicCas64(expectedValue, newValue, address);
 
     RETURN_BOOLEAN(result == 0);
 }
@@ -173,7 +173,7 @@
     s8 offset = GET_ARG_LONG(args, 2);
     volatile s8* address = (volatile s8*) (((u1*) obj) + offset);
 
-    RETURN_LONG(android_quasiatomic_read_64(address));
+    RETURN_LONG(dvmQuasiAtomicRead64(address));
 }
 
 /*
@@ -188,7 +188,7 @@
     s8 value = GET_ARG_LONG(args, 4);
     volatile s8* address = (volatile s8*) (((u1*) obj) + offset);
 
-    android_quasiatomic_swap_64(value, address);
+    dvmQuasiAtomicSwap64(value, address);
     RETURN_VOID();
 }