pinctrl: at91-pio4: handle suspend to ram

When suspending to RAM, the power to the core is cut and the register
values are lost. Save and restore more registers than just IMR.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
1 file changed