sunxi: Allwinner SUN7I (A20) support

use different hhcr for a20

add dram setup

Supply para->tpr3 as phase argument to dll0 and dllx setup

more dram debug

sorted dram init, A20 is more like SUN5I

create CONFIG_SUN7I

spelling error

Signed-off-by: Luke Leighton <lkcl@lkcl.net>
Signed-off-by: Henrik Nordstrom <henrik@henriknordstrom.net>
add sun7i.h header

Cleanup sun7i config

Update my copyright

Signed-off-by: Luke Leighton <lkcl@lkcl.net>
Signed-off-by: Henrik Nordstrom <henrik@henriknordstrom.net>
add eoma68-a20

use a10_meminfo_static values

Cleanup sun7i config

Signed-off-by: Luke Leighton <lkcl@lkcl.net>
Signed-off-by: Henrik Nordstrom <henrik@henriknordstrom.net>
add copyright notices