arm64: dts: renesas: Remove use of ARCH_R8A7796

CONFIG_ARCH_R8A7796 was renamed to CONFIG_ARCH_R8A77960 in commit
39e57e14 ("soc: renesas: Add ARCH_R8A77960 for existing R-Car
M3-W"), so its users can be removed.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20191211100438.7094-1-geert+renesas@glider.be

arch/arm64/boot/dts/renesas/Makefile

@@ -9,9 +9,6 @@ dtb-$(CONFIG_ARCH_R8A7795) += r8a7795-h3ulcb-kf.dtb
 dtb-$(CONFIG_ARCH_R8A7795) += r8a7795-salvator-xs.dtb
 dtb-$(CONFIG_ARCH_R8A7795) += r8a7795-es1-salvator-x.dtb r8a7795-es1-h3ulcb.dtb
 dtb-$(CONFIG_ARCH_R8A7795) += r8a7795-es1-h3ulcb-kf.dtb
-dtb-$(CONFIG_ARCH_R8A7796) += r8a7796-salvator-x.dtb r8a7796-m3ulcb.dtb
-dtb-$(CONFIG_ARCH_R8A7796) += r8a7796-m3ulcb-kf.dtb
-dtb-$(CONFIG_ARCH_R8A7796) += r8a7796-salvator-xs.dtb
 dtb-$(CONFIG_ARCH_R8A77960) += r8a7796-salvator-x.dtb r8a7796-m3ulcb.dtb
 dtb-$(CONFIG_ARCH_R8A77960) += r8a7796-m3ulcb-kf.dtb
 dtb-$(CONFIG_ARCH_R8A77960) += r8a7796-salvator-xs.dtb