UPSTREAM: staging/gdm72xx: Include corresponding header file (fix sparse warning)

UPSTREAM: staging/gdm72xx: Include corresponding header file (fix sparse warning)

sdio_boot.c and netlink_k.c both have a corresponding header file with
their function prototypes but fail to include them, which leads to the
following sparse warnings:
sdio_boot.c:135:5: warning: symbol 'sdio_boot' was not declared. Should it be static?
netlink_k.c:89:13: warning: symbol 'netlink_init' was not declared. Should it be static?
netlink_k.c:109:6: warning: symbol 'netlink_exit' was not declared. Should it be static?
netlink_k.c:114:5: warning: symbol 'netlink_send' was not declared. Should it be static?

-> Add the include files and silence the warning

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit a6000538e402ef2479a16ff789059c78a152be9d)

Change-Id: Id26144d3d78f9a0de1be70e5f3a2bed1fccae25f
Signed-off-by: Ben Chan <benchan@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/49424
Reviewed-by: Paul Stewart <pstew@chromium.org>
Reviewed-by: Olof Johansson <olofj@chromium.org>