pinctrl: select the proper symbol

The Kconfig entry for the COH901 pin controller depended on
PINMUX_U300 which is stale, use PINCTRL_U300 as it is called
these days.

Change-Id: I36d5c877c7d5c9edde0a774aa26057575f19770b
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Git-commit: 3c94d1bbda491ba924e5c479e87bc2faae463253
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Hanumant Singh <hanumant@codeaurora.org>
1 file changed