The renaming of pinctrl_uart3 to pinctrl_usart3 was missed in
commit 9e3129e9 (ARM: at91: fix usart/uart namimg in pinctrl).
Signed-off-by: NRobert Nelson <robertcnelson@gmail.com>
Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com>