ARM: rmobile: beacon: Support RZ/G2 [M/N/H] on TARGET_BEACON_RZG2M

The three different boards share the same board file and only differ
in terms of which SoC is being used.  By enabling FIT on
TARGET_BEACON_RZG2M, it can support all three boards and elimate
duplicate code.

Signed-off-by: Adam Ford <aford173@gmail.com>
diff --git a/arch/arm/mach-rmobile/Kconfig.64 b/arch/arm/mach-rmobile/Kconfig.64
index 9854974..6a6dafc 100644
--- a/arch/arm/mach-rmobile/Kconfig.64
+++ b/arch/arm/mach-rmobile/Kconfig.64
@@ -92,8 +92,14 @@
 config TARGET_BEACON_RZG2M
 	bool "Beacon EmbeddedWorks RZ/G2M Dev Kit"
 	select R8A774A1
+	select R8A774B1
+	select R8A774E1
 	select RZ_G2
 	select PINCTRL_PFC_R8A774A1
+	select PINCTRL_PFC_R8A774B1
+	select PINCTRL_PFC_R8A774E1
+	imply MULTI_DTB_FIT
+	imply MULTI_DTB_FIT_USER_DEFINED_AREA
 
 config TARGET_BEACON_RZG2N
 	bool "Beacon EmbeddedWorks RZ/G2N Dev Kit"
@@ -189,11 +195,13 @@
 source "board/silinux/ek874/Kconfig"
 
 config MULTI_DTB_FIT_UNCOMPRESS_SZ
+	default 0x80000 if TARGET_BEACON_RZG2M
 	default 0x80000 if TARGET_HIHOPE_RZG2
 	default 0x80000 if TARGET_SALVATOR_X
 	default 0x80000 if TARGET_ULCB
 
 config MULTI_DTB_FIT_USER_DEF_ADDR
+	default 0x49000000 if TARGET_BEACON_RZG2M
 	default 0x49000000 if TARGET_HIHOPE_RZG2
 	default 0x49000000 if TARGET_SALVATOR_X
 	default 0x49000000 if TARGET_ULCB