fix: a38x, msys: enable switching services for relevant platforms

	- mtdburn and cpss_env commands are relevant only for
	  AC3 & BC2 & AMC boards, enable the commands for these
	  boards only

Change-Id: I107662072cce01b7582155d72c451626c8956afa
Signed-off-by: Bassel Saba <basselsa@marvell.com>
Reviewed-on: http://vgitil04.il.marvell.com:8080/19134
Reviewed-by: Omri Itach <omrii@marvell.com>
Tested-by: Omri Itach <omrii@marvell.com>
5 files changed