lcd: atmel: Add 32bpp support for HLCDC

Add 32bpp framebuffer support for the Atmel HLCDC driver. This is
needed for output bpp higher than 16bpp.

Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Andreas Bießmann <andreas.devel@googlemail.com>
1 file changed