arm64: Select COMMON_CLK_IPROC, PINCTRL and GPIOLIB for iProc SoCs

We select COMMON_CLK_IPROC, PINCTRL, and GPIOLIB in arm64 Kconfig
for ARCH_BCM_IPROC so that we can use COMMON_CLK, PINCTRL and GPIOLIB
with iProc SoC drivers.
Signed-off-by: Anup Patel <anup.patel@broadcom.com>
Signed-off-by: Ray Jui <rjui@broadcom.com>
Signed-off-by: Yendapally Reddy Dhananjaya Reddy <yrdreddy@broadcom.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

arch/arm64/Kconfig.platforms

@@ -2,6 +2,9 @@ menu "Platform selection"
 
 config ARCH_BCM_IPROC
 	bool "Broadcom iProc SoC Family"
+	select COMMON_CLK_IPROC
+	select PINCTRL
+	select ARCH_REQUIRE_GPIOLIB
 	help
 	  This enables support for Broadcom iProc based SoCs