soc: renesas: Enable RZ/A1 IRQC on RZ/A1H and RZ/A2M

Auto-enable support for the RZ/A1 Interrupt Controller when configuring
a kernel which supports RZ/A1H or RZ/A2M SoCs.
Keep selects sorted while at it.

This is similar to how interrupt controllers for other Renesas SoCs are
enabled.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

drivers/soc/renesas/Kconfig

@@ -57,14 +57,16 @@ config ARCH_R7S72100
 	bool "RZ/A1H (R7S72100)"
 	select PM
 	select PM_GENERIC_DOMAINS
-	select SYS_SUPPORTS_SH_MTU2
 	select RENESAS_OSTM
+	select RENESAS_RZA1_IRQC
+	select SYS_SUPPORTS_SH_MTU2
 
 config ARCH_R7S9210
 	bool "RZ/A2 (R7S9210)"
 	select PM
 	select PM_GENERIC_DOMAINS
 	select RENESAS_OSTM
+	select RENESAS_RZA1_IRQC
 
 config ARCH_R8A73A4
 	bool "R-Mobile APE6 (R8A73A40)"