ARM: shmobile: Introduce a Kconfig entry for R-Mobile

Add a Kconfig entry for R-Mobile SoCs that enables
both CMT and TMU timers. Interrupt controller varies
with SoC version so it is excluded.
Signed-off-by: NMagnus Damm <damm+renesas@opensource.se>
Acked-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

arch/arm/mach-shmobile/Kconfig

 config ARCH_SHMOBILE
 	bool
 
+config ARCH_RMOBILE
+	bool
+	select SYS_SUPPORTS_SH_CMT
+	select SYS_SUPPORTS_SH_TMU
+
 menuconfig ARCH_SHMOBILE_MULTI
 	bool "Renesas ARM SoCs" if ARCH_MULTI_V7
 	depends on MMU
@@ -71,16 +76,16 @@ comment "Renesas ARM SoCs System Type"
 
 config ARCH_SH7372
 	bool "SH-Mobile AP4 (SH7372)"
+	select ARCH_RMOBILE
 	select ARCH_WANT_OPTIONAL_GPIOLIB
 	select ARM_CPU_SUSPEND if PM || CPU_IDLE
 	select CPU_V7
 	select SH_CLK_CPG
 	select SH_INTC
-	select SYS_SUPPORTS_SH_CMT
-	select SYS_SUPPORTS_SH_TMU
 
 config ARCH_SH73A0
 	bool "SH-Mobile AG5 (R8A73A00)"
+	select ARCH_RMOBILE
 	select ARCH_WANT_OPTIONAL_GPIOLIB
 	select ARM_GIC
 	select CPU_V7
@@ -88,28 +93,24 @@ config ARCH_SH73A0
 	select SH_CLK_CPG
 	select SH_INTC
 	select RENESAS_INTC_IRQPIN
-	select SYS_SUPPORTS_SH_CMT
-	select SYS_SUPPORTS_SH_TMU
 
 config ARCH_R8A73A4
 	bool "R-Mobile APE6 (R8A73A40)"
+	select ARCH_RMOBILE
 	select ARCH_WANT_OPTIONAL_GPIOLIB
 	select ARM_GIC
 	select CPU_V7
 	select SH_CLK_CPG
 	select RENESAS_IRQC
-	select SYS_SUPPORTS_SH_CMT
-	select SYS_SUPPORTS_SH_TMU
 
 config ARCH_R8A7740
 	bool "R-Mobile A1 (R8A77400)"
+	select ARCH_RMOBILE
 	select ARCH_WANT_OPTIONAL_GPIOLIB
 	select ARM_GIC
 	select CPU_V7
 	select SH_CLK_CPG
 	select RENESAS_INTC_IRQPIN
-	select SYS_SUPPORTS_SH_CMT
-	select SYS_SUPPORTS_SH_TMU
 
 config ARCH_R8A7778
 	bool "R-Car M1A (R8A77781)"