libbcc: disable more modules for arm64

Disable building libbccSupport and libbccRenderscript for 64-bit

Change-Id: Ied29b4eb129f42b1d3ad0a6d71a683d28b3e14be
diff --git a/lib/Renderscript/Android.mk b/lib/Renderscript/Android.mk
index b0ad839..1f77e0b 100644
--- a/lib/Renderscript/Android.mk
+++ b/lib/Renderscript/Android.mk
@@ -39,6 +39,9 @@
 
 include $(CLEAR_VARS)
 
+# not supported on 64-bit yet
+LOCAL_32_BIT_ONLY := true
+
 LOCAL_MODULE := libbccRenderscript
 LOCAL_MODULE_TAGS := optional
 LOCAL_MODULE_CLASS := STATIC_LIBRARIES
diff --git a/lib/Support/Android.mk b/lib/Support/Android.mk
index 1abe4c2..9fed262 100644
--- a/lib/Support/Android.mk
+++ b/lib/Support/Android.mk
@@ -37,6 +37,9 @@
 
 include $(CLEAR_VARS)
 
+# not supported on 64-bit yet
+LOCAL_32_BIT_ONLY := true
+
 LOCAL_MODULE := libbccSupport
 LOCAL_MODULE_TAGS := optional
 LOCAL_MODULE_CLASS := STATIC_LIBRARIES