arm: rmobile: Add basic R9A07G044L SoC support

Add a config option for the R9A07G044L SoC used in the RZ/G2L so that we
can make use of this in the subsequent driver patches.

Signed-off-by: Paul Barker <paul.barker.ct@bp.renesas.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
diff --git a/arch/arm/mach-rmobile/Kconfig.rzg2l b/arch/arm/mach-rmobile/Kconfig.rzg2l
index 37ff6cd..eda04df 100644
--- a/arch/arm/mach-rmobile/Kconfig.rzg2l
+++ b/arch/arm/mach-rmobile/Kconfig.rzg2l
@@ -3,6 +3,11 @@
 
 if RZG2L
 
+config R9A07G044L
+	bool "Renesas R9A07G044L SoC"
+	help
+	  Enable support for the Renesas R9A07G044L (RZ/G2L) SoC.
+
 config MULTI_DTB_FIT_UNCOMPRESS_SZ
 	default 0x80000 if TARGET_RZG2L_SMARC_EVK