pinctrl: rockchip: add suspend/resume functions
pinctrl: rockchip: add suspend/resume functions

support suspend/resume of pinctrl, it allows handling sleep mode
for hogged pins in pinctrl

Signed-off-by: Chris Zhong <83f0f67e3a475ac31423a7deb3ea3845def2c091@rock-chips.com>
Tested-by: Doug Anderson <49983c4a76b998672954ed5edf4a62db4a336502@chromium.org>
Reviewed-by: Doug Anderson <49983c4a76b998672954ed5edf4a62db4a336502@chromium.org>
Tested-by: Heiko Stuebner <9ab5f52a1ca0bcf4f70d6d9008e02f6134b5b8f2@sntech.de>
Signed-off-by: Heiko Stuebner <9ab5f52a1ca0bcf4f70d6d9008e02f6134b5b8f2@sntech.de>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs