Clean up RS samples for SDK, bug 2943369
Fix bug 3403965 rsgSyncAll would not mark constants as changed
found by inspection.

Only rsAllocation.cpp affects on device bits.

Change-Id: I6b7ec0df87e42687b24384aaf54dc04976cb84f7

doc update

Change-Id: Id5841f08868557e086f185024470924ef202d19f
diff --git a/libs/rs/rsAllocation.cpp b/libs/rs/rsAllocation.cpp
index 41c9fe2..c598f03 100644
--- a/libs/rs/rsAllocation.cpp
+++ b/libs/rs/rsAllocation.cpp
@@ -679,6 +679,7 @@
 void rsi_AllocationSyncAll(Context *rsc, RsAllocation va, RsAllocationUsageType src) {
     Allocation *a = static_cast<Allocation *>(va);
     a->syncAll(rsc, src);
+    a->sendDirty();
 }
 
 void rsi_AllocationGenerateMipmaps(Context *rsc, RsAllocation va) {