pinctrl: move strict option to pinmux_ops

While the pinmux_ops are ideally just a vtable for pin mux
calls, the "strict" setting belongs so intuitively with the
pin multiplexing that we should move it here anyway. Putting
it in the top pinctrl_desc makes no sense.

Cc: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --cc Documentation/pinctrl.txt
Simple merge

diff --cc drivers/pinctrl/pinctrl-adi2.c
Simple merge

diff --cc drivers/pinctrl/pinmux.c
Simple merge

diff --cc include/linux/pinctrl/pinctrl.h
Simple merge

diff --cc include/linux/pinctrl/pinmux.h
Simple merge