Unify eoma68_a20 and a20_olinuxino_m dram settings

As they are 100% identical.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
sunxi: add board MK808C

HdG: Use standard dram_sun7i_384_1024_iow16.c timings instead of introducing
a copy of it.

Signed-off-by: Marcus Cooper <codekipper@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
sunxi: dram: Adjust cubietruck dram chip width and density

Cubietruck has four 4Gb x8 DDR3 chips, not two 8Gb x16. This doesn't
change anything for users, but reports correct values for timing
parameters depending on density.

Signed-off-by: Jens Kuske <jenskuske@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Merge github.com:linux-sunxi/u-boot-sunxi into sunxi