ARM: imx: Wrap i.MX config options in MACH_IMX

Wrap all the i.MX specific options in MACH_IMX, otherwise they keep
showing up in other SoC vendor configurations. No functional change.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index c34bc25..134e420 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -1,6 +1,8 @@
 config MACH_IMX
 	bool
 
+if MACH_IMX
+
 config HAS_CAAM
 	bool
 
@@ -200,3 +202,5 @@
 
 config IOMUX_SHARE_CONF_REG
 	bool
+
+endif