fix: A375: add support for X16bit sdram bus width

        - the dram bus width can be change by reading the bios S@R (address =0x4C, Reg=0x1, bit =0)
                0x0 = 32 bit
                0x1 = 16 bit
	- Increment sub version to 5.5.7

Change-Id: I3746bef0212e1820cb90104e1ef5826ee35370f8
Signed-off-by: Moti Buskila <motib@marvell.com>
Reviewed-on: http://vgitil04.il.marvell.com:8080/5806
Reviewed-by: Omri Itach <omrii@marvell.com>
Tested-by: Omri Itach <omrii@marvell.com>
2 files changed