cherry-pick below patch from v3.14.y:
ENGR00286273-2 misc: sram: Set default alignment to 4Kbytes
As Kernel 3.0.35 does, we set the default iram alignment to 4Kbytes,
although it would waste few memory space.
We here try to do this as an expediency because currently we couldn't
find a perfect solution for 4Kbytes alignment requirement from SDMA.
Signed-off-by: Nicolin Chen <b42378@freescale.com>
(cherry picked from commit cc35bf5bd3472efca29a0858c0ad468a63c60950)
643317e9a1