arm64: dts: renesas: Prepare for split of ARCH_R8A7795 into ARCH_R8A7795[01]

As R-Car H3 ES1.x (R8A77950) and R-Car H3 ES2.0+ (R8A77951) are really
different SoCs, CONFIG_ARCH_R8A7795 will be split in
CONFIG_ARCH_R8A77950 and CONFIG_ARCH_R8A77951.

Relax dependencies by handling both the old and the new symbols.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/20191217183841.432-5-geert+renesas@glider.be

arch/arm64/boot/dts/renesas/Makefile

@@ -9,6 +9,10 @@ dtb-$(CONFIG_ARCH_R8A7795) += r8a77950-salvator-x.dtb
 dtb-$(CONFIG_ARCH_R8A7795) += r8a77950-ulcb.dtb r8a77950-ulcb-kf.dtb
 dtb-$(CONFIG_ARCH_R8A7795) += r8a77951-salvator-x.dtb r8a77951-salvator-xs.dtb
 dtb-$(CONFIG_ARCH_R8A7795) += r8a77951-ulcb.dtb r8a77951-ulcb-kf.dtb
+dtb-$(CONFIG_ARCH_R8A77950) += r8a77950-salvator-x.dtb
+dtb-$(CONFIG_ARCH_R8A77950) += r8a77950-ulcb.dtb r8a77950-ulcb-kf.dtb
+dtb-$(CONFIG_ARCH_R8A77951) += r8a77951-salvator-x.dtb r8a77951-salvator-xs.dtb
+dtb-$(CONFIG_ARCH_R8A77951) += r8a77951-ulcb.dtb r8a77951-ulcb-kf.dtb
 dtb-$(CONFIG_ARCH_R8A77960) += r8a77960-salvator-x.dtb r8a77960-salvator-xs.dtb
 dtb-$(CONFIG_ARCH_R8A77960) += r8a77960-ulcb.dtb r8a77960-ulcb-kf.dtb
 dtb-$(CONFIG_ARCH_R8A77961) += r8a77961-salvator-xs.dtb