pinctrl: rename U300 and SIRF pin controllers

For stringent order, rename the pinmux-* pin controllers to
pinctrl-* and also rename the Kconfig symbols and in-kernel
users.

Cc: Rongjun Ying <Rongjun.Ying@csr.com>
Cc: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/arch/arm/mach-u300/Kconfig b/arch/arm/mach-u300/Kconfig
index c2d5c6c..54d8f34 100644
--- a/arch/arm/mach-u300/Kconfig
+++ b/arch/arm/mach-u300/Kconfig
@@ -7,7 +7,7 @@
 config MACH_U300
 	bool "U300"
 	select PINCTRL
-	select PINMUX_U300
+	select PINCTRL_U300
 	select PINCTRL_COH901
 
 comment "ST-Ericsson U300/U330/U335/U365 Feature Selections"