ARM: qcom: Select PINCTRL by default for ARCH_QCOM

Add missing PINCTRL selection.  This enables selection of pinctrollers for
Qualcomm processors.

Signed-off-by: Andy Gross <agross@codeaurora.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Kumar Gala <galak@codeaurora.org>