kbuild: v850 use generic asm-offsets.h support

Deleted obsolete stuff from arch makefile
Renamed .c file to asm-offsets.h
Fix include of asm-offsets.h to use new name

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

arch/v850/Makefile

@@ -51,16 +51,4 @@ root_fs_image_force: $(ROOT_FS_IMAGE)
 	$(OBJCOPY) $(OBJCOPY_FLAGS_BLOB) --rename-section .data=.root,alloc,load,readonly,data,contents $< root_fs_image.o
 endif
 
-
-prepare: include/asm-$(ARCH)/asm-consts.h
-
-# Generate constants from C code for use by asm files
-arch/$(ARCH)/kernel/asm-consts.s: include/asm include/linux/version.h \
-				   include/config/MARKER
-
-include/asm-$(ARCH)/asm-consts.h: arch/$(ARCH)/kernel/asm-consts.s
-	$(call filechk,gen-asm-offsets)
-
-CLEAN_FILES += include/asm-$(ARCH)/asm-consts.h \
-	       arch/$(ARCH)/kernel/asm-consts.s \
-	       root_fs_image.o
+CLEAN_FILES += root_fs_image.o

arch/v850/kernel/entry.S

@@ -22,7 +22,7 @@
 #include <asm/irq.h>
 #include <asm/errno.h>
 
-#include <asm/asm-consts.h>
+#include <asm/asm-offsets.h>
 
 
 /* Make a slightly more convenient alias for C_SYMBOL_NAME.  */