video: cfb_console: add function to plot the logo area black

Signed-off-by: Bastian Ruppert <Bastian.Ruppert@Sewerin.de>
CC: Anatolij Gustschin <agust@denx.de>
CC: Tom Rini <trini@ti.com>
CC: Stefano Babic <sbabic@denx.de>
1 file changed