treewide: simplify inclusion of subtarget image files

Many target use a repetitive if-include scheme for their subtarget
image files, though their names are consistent with the subtarget
names.

This patch removes these redundant conditions and just uses the
variable for the include where the target setup allows it.

For sunxi, this includes a trivial rename of the subtarget image
Makefiles.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

target/linux/at91/image/Makefile

@@ -13,12 +13,7 @@ define Build/at91-install-zImage
     $(CP) $(KDIR)/zImage $@
 endef
 
-ifeq ($(SUBTARGET),sam9x)
-include ./sam9x.mk
-endif
-ifeq ($(SUBTARGET),sama5)
-include ./sama5.mk
-endif
+include $(SUBTARGET).mk
 
 AT91_SD_BOOT_PARTSIZE:=64
 FAT32_BLOCK_SIZE:=1024

target/linux/ath79/image/Makefile

@@ -68,20 +68,16 @@ define Device/Default
 	append-rootfs | pad-rootfs | append-metadata | check-size
 endef
 
+include $(SUBTARGET).mk
+
 ifeq ($(SUBTARGET),generic)
-include ./generic.mk
-include ./generic-tp-link.mk
-include ./generic-ubnt.mk
-endif
-ifeq ($(SUBTARGET),mikrotik)
-include ./mikrotik.mk
-endif
-ifeq ($(SUBTARGET),nand)
-include ./nand.mk
+include generic-tp-link.mk
+include generic-ubnt.mk
 endif
+
 ifeq ($(SUBTARGET),tiny)
-include ./tiny.mk
-include ./tiny-netgear.mk
-include ./tiny-tp-link.mk
+include tiny-netgear.mk
+include tiny-tp-link.mk
 endif
+
 $(eval $(call BuildImage))

target/linux/layerscape/image/Makefile

@@ -43,12 +43,6 @@ define Build/traverse-fit
 	@mv -f $@.new $@
 endef
 
-ifeq ($(SUBTARGET),armv8_64b)
-include armv8_64b.mk
-endif
-
-ifeq ($(SUBTARGET),armv7)
-include armv7.mk
-endif
+include $(SUBTARGET).mk
 
 $(eval $(call BuildImage))

target/linux/mvebu/image/Makefile

@@ -138,16 +138,6 @@ define Device/NAND-512K
   PAGESIZE := 4096
 endef
 
-ifeq ($(SUBTARGET),cortexa9)
-include cortexa9.mk
-endif
-
-ifeq ($(SUBTARGET),cortexa53)
-include cortexa53.mk
-endif
-
-ifeq ($(SUBTARGET),cortexa72)
-include cortexa72.mk
-endif
+include $(SUBTARGET).mk
 
 $(eval $(call BuildImage))

target/linux/oxnas/image/Makefile

@@ -4,12 +4,6 @@ include $(INCLUDE_DIR)/image.mk
 VMLINUX:=$(BIN_DIR)/$(IMG_PREFIX)-vmlinux
 UIMAGE:=$(BIN_DIR)/$(IMG_PREFIX)-uImage
 
-ifeq ($(SUBTARGET),ox810se)
-include ox810se.mk
-endif
-
-ifeq ($(SUBTARGET),ox820)
-include ox820.mk
-endif
+include $(SUBTARGET).mk
 
 $(eval $(call BuildImage))

target/linux/rockchip/image/Makefile

@@ -56,8 +56,6 @@ define Device/Default
   DEVICE_DTS = rockchip/$$(SOC)-$(lastword $(subst _, ,$(1)))
 endef
 
-ifeq ($(SUBTARGET),armv8)
-  include armv8.mk
-endif
+include $(SUBTARGET).mk
 
 $(eval $(call BuildImage))

target/linux/sunxi/image/Makefile

@@ -42,16 +42,6 @@ define Device/Default
   SUNXI_DTS = $$(SUNXI_DTS_DIR)$$(SOC)-$(lastword $(subst _, ,$(1)))
 endef
 
-ifeq ($(SUBTARGET),cortexa7)
-include cortex-a7.mk
-endif
-
-ifeq ($(SUBTARGET),cortexa8)
-include cortex-a8.mk
-endif
-
-ifeq ($(SUBTARGET),cortexa53)
-include cortex-a53.mk
-endif
+include $(SUBTARGET).mk
 
 $(eval $(call BuildImage))

target/linux/x86/image/Makefile

@@ -146,21 +146,7 @@ define Device/Default
   ARTIFACTS := $$(ARTIFACTS-y)
 endef
 
-ifeq ($(SUBTARGET),64)
-  include 64.mk
-endif
-
-ifeq ($(SUBTARGET),generic)
-  include generic.mk
-endif
-
-ifeq ($(SUBTARGET),geode)
-  include geode.mk
-endif
-
-ifeq ($(SUBTARGET),legacy)
-  include legacy.mk
-endif
+include $(SUBTARGET).mk
 
 $(eval $(call BuildImage))