cmd: bmp: Split bmp commands and functions

To enable splash screen at SPL, need to compile cmd/bmp.c which also
includes bmp commands, since SPL doesn't use commands split bmp.c into
common/bmp.c which includes all bmp functions and cmd/bmp.c which only
contains bmp commands.

Add function delclaration for bmp_info in video.h.

Signed-off-by: Nikhil M Jain <n-jain1@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
3 files changed