Place ipuv3 files and headers in custom driver subdirectory.

Signed-off-by: Anatolij Gustschin <agust@denx.de>

When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>

Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>

Add framebuffer driver for the MX51 processor
working on the IPUv3 internal graphic processor.
The port is based on the driver found in the kernel
delivered by Freescale as part of i.MX BSP:

[kernel 2.6.31 commit cc4fe714041805997b601fe8e5dd585d8a99297f]

[agust@denx.de: some style fixes and dead code removal]
Signed-off-by: Stefano Babic <sbabic@denx.de>
Signed-off-by: Anatolij Gustschin <agust@denx.de>