Move TLS behind hal.

Change-Id: I9e84acb3736bc98fa5fb0720bddb13a030285319
diff --git a/libs/rs/driver/rsdRuntimeStubs.cpp b/libs/rs/driver/rsdRuntimeStubs.cpp
index e384713..b70a123 100644
--- a/libs/rs/driver/rsdRuntimeStubs.cpp
+++ b/libs/rs/driver/rsdRuntimeStubs.cpp
@@ -32,7 +32,7 @@
 using namespace android::renderscript;
 
 #define GET_TLS()  ScriptTLSStruct * tls = \
-    (ScriptTLSStruct *)pthread_getspecific(Context::gThreadTLSKey); \
+    (ScriptTLSStruct *)pthread_getspecific(rsdgThreadTLSKey); \
     Context * rsc = tls->mContext; \
     ScriptC * sc = (ScriptC *) tls->mScript