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
8 files changed