ARM: shmobile: Hide ARCH_RZN1 to improve consistency

Unlike all other family-specific Kconfig symbols for Renesas ARM SoCs,
ARCH_RZN1 is user-visible.  As this symbol is already selected by the
SoC-specific ARCH_R9A06G032 symbol, there is no need for that.

Hide ARCH_RZN1 from the user, and move it up, where all other
family-specific Kconfig symbols live.  Drop the select of CPU_V7, as
this is already implied by the dependency of ARCH_RENESAS on
ARCH_MULTI_V7.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/mach-shmobile/Kconfig

@@ -25,6 +25,10 @@ config ARCH_RMOBILE
 	select SYS_SUPPORTS_SH_CMT
 	select SYS_SUPPORTS_SH_TMU
 
+config ARCH_RZN1
+	bool
+	select ARM_AMBA
+
 menuconfig ARCH_RENESAS
 	bool "Renesas ARM SoCs"
 	depends on ARCH_MULTI_V7 && MMU
@@ -128,11 +132,6 @@ config ARCH_R9A06G032
 	bool "RZ/N1D (R9A06G032)"
 	select ARCH_RZN1
 
-config ARCH_RZN1
-	bool "RZ/N1 (R9A06G0xx) Family"
-	select ARM_AMBA
-	select CPU_V7
-
 config ARCH_SH73A0
 	bool "SH-Mobile AG5 (R8A73A00)"
 	select ARCH_RMOBILE