arm64: dts: renesas: Sort DTBs in Makefile

Sort the entries for the various DTBs in the Makefile by SoC and board
type.  Keep Salvator-X(S) together, and do the same for ULCB with and
without Kingfisher extension.
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/20191217183841.432-4-geert+renesas@glider.be

arch/arm64/boot/dts/renesas/Makefile

@@ -5,18 +5,15 @@ dtb-$(CONFIG_ARCH_R8A774B1) += r8a774b1-hihope-rzg2n.dtb
 dtb-$(CONFIG_ARCH_R8A774B1) += r8a774b1-hihope-rzg2n-ex.dtb
 dtb-$(CONFIG_ARCH_R8A774C0) += r8a774c0-cat874.dtb r8a774c0-ek874.dtb \
 			       r8a774c0-ek874-idk-2121wr.dtb
-dtb-$(CONFIG_ARCH_R8A7795) += r8a77951-salvator-x.dtb r8a77951-ulcb.dtb
-dtb-$(CONFIG_ARCH_R8A7795) += r8a77951-ulcb-kf.dtb
-dtb-$(CONFIG_ARCH_R8A7795) += r8a77951-salvator-xs.dtb
-dtb-$(CONFIG_ARCH_R8A7795) += r8a77950-salvator-x.dtb r8a77950-ulcb.dtb
-dtb-$(CONFIG_ARCH_R8A7795) += r8a77950-ulcb-kf.dtb
-dtb-$(CONFIG_ARCH_R8A77960) += r8a77960-salvator-x.dtb r8a77960-ulcb.dtb
-dtb-$(CONFIG_ARCH_R8A77960) += r8a77960-ulcb-kf.dtb
-dtb-$(CONFIG_ARCH_R8A77960) += r8a77960-salvator-xs.dtb
+dtb-$(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_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
 dtb-$(CONFIG_ARCH_R8A77965) += r8a77965-salvator-x.dtb r8a77965-salvator-xs.dtb
-dtb-$(CONFIG_ARCH_R8A77965) += r8a77965-ulcb.dtb
-dtb-$(CONFIG_ARCH_R8A77965) += r8a77965-ulcb-kf.dtb
+dtb-$(CONFIG_ARCH_R8A77965) += r8a77965-ulcb.dtb r8a77965-ulcb-kf.dtb
 dtb-$(CONFIG_ARCH_R8A77970) += r8a77970-eagle.dtb r8a77970-v3msk.dtb
 dtb-$(CONFIG_ARCH_R8A77980) += r8a77980-condor.dtb r8a77980-v3hsk.dtb
 dtb-$(CONFIG_ARCH_R8A77990) += r8a77990-ebisu.dtb