a38x: update DDR/CPU frequency modes for DDR3/4

	- Add frequency modes to supported CPU/DDR modes:
	  1. 0x12: 1800/900MHz
	  2. 0x13: 2000/1000MHz

Change-Id: I92d2ec0e40f23ba097dcc805ed3ed5428db6aaf9
Signed-off-by: Bassel Saba <basselsa@marvell.com>
Reviewed-on: http://vgitil04.il.marvell.com:8080/18477
Reviewed-by: Omri Itach <omrii@marvell.com>
Tested-by: Omri Itach <omrii@marvell.com>
1 file changed