Add 64bit large object support

Add HAL hooks for filling in LO fields.

Change-Id: Ib9bdee714a062de519d2a9708c1016404a1b11a4

Conflicts:
	driver/rsdBcc.cpp
	driver/rsdCore.cpp
	rsAllocation.h
	rs_hal.h
diff --git a/rsAllocation.h b/rsAllocation.h
index 1b842b8..f197efc 100644
--- a/rsAllocation.h
+++ b/rsAllocation.h
@@ -151,6 +151,7 @@
 
     void incRefs(const void *ptr, size_t ct, size_t startOff = 0) const;
     void decRefs(const void *ptr, size_t ct, size_t startOff = 0) const;
+    virtual void callUpdateCacheObject(const Context *rsc, void *dstObj) const;
     virtual bool freeChildren();
 
     void sendDirty(const Context *rsc) const;