Build: slim up sounds and update (2/2)

reference on sdk and full base builds to slims make file.
As well remove both copy command in sdk build. This is handled already on slims
make file.

Change-Id: I9b0146df1a43cfc5282288012fc59509e0badedf

Conflicts:
	target/product/full_base.mk
	target/product/sdk_base.mk