This patch fixes a build failure [1] due to missing includes
This should make the arm tree build again with lpd7a404_defconfig

References:
http://kisskb.ellerman.id.au/kisskb/buildresult/1983329/Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>