omap: emif: Set initial DDR PHY config first

Initial DDR PHY config register value is set in
configuration structure, but it was not used.

Signed-off-by: Taras Kondratiuk <taras@ti.com>
SPL: Limit image name print length

If image name is longer than 32 bytes, then it will be truncated.
This will remove '\0' at the end of the line, so printf will
go out of string limit.

Signed-off-by: Taras Kondratiuk <taras@ti.com>
SPL: Use image_check_magic() macro to hide IH_MAGIC

Signed-off-by: Taras Kondratiuk <taras@ti.com>