this patch fix the following warnings :
arch/arm/mach-at91/at91sam9g45_devices.c:305:3: warning: initialization discards 'const' qualifier from pointer target type [enabled by default]
arch/arm/mach-at91/at91sam9g45_devices.c:309:3: warning: initialization discards 'const' qualifier from pointer target type [enabled by default]
Signed-off-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>