ARM: imx: move malloc area to upper memory bank by default
If we have two discontinuous memory banks we want to move
the malloc area into the upper bank by default to leave as
much free space in the lower bank, where we have to place
kernel, oftree and initrd.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>