pinctrl: tegra: Make PINCTRL_TEGRA select PINMUX && PINCONF

Then we can remove "select PINMUX && PINCONF" from PINCTRL_TEGRA{20,30}.
This simplifies the dependency.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/Kconfig

@@ -156,17 +156,15 @@ config PINCTRL_SIRF
 
 config PINCTRL_TEGRA
 	bool
+	select PINMUX
+	select PINCONF
 
 config PINCTRL_TEGRA20
 	bool
-	select PINMUX
-	select PINCONF
 	select PINCTRL_TEGRA
 
 config PINCTRL_TEGRA30
 	bool
-	select PINMUX
-	select PINCONF
 	select PINCTRL_TEGRA
 
 config PINCTRL_U300