sparc: syscalls: use pattern rules to generate syscall headers

Use pattern rules to unify similar build rules between 32-bit and 64-bit.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

arch/sparc/kernel/syscalls/Makefile

@@ -10,25 +10,15 @@ syshdr := $(srctree)/scripts/syscallhdr.sh
 systbl := $(srctree)/scripts/syscalltbl.sh
 
 quiet_cmd_syshdr = SYSHDR  $@
-      cmd_syshdr = $(CONFIG_SHELL) $(syshdr) --emit-nr --abis $(abis) $< $@
+      cmd_syshdr = $(CONFIG_SHELL) $(syshdr) --emit-nr --abis common,$* $< $@
 
 quiet_cmd_systbl = SYSTBL  $@
-      cmd_systbl = $(CONFIG_SHELL) $(systbl) --abis $(abis) $< $@
+      cmd_systbl = $(CONFIG_SHELL) $(systbl) --abis common,$* $< $@
 
-$(uapi)/unistd_32.h: abis := common,32
-$(uapi)/unistd_32.h: $(syscall) $(syshdr) FORCE
+$(uapi)/unistd_%.h: $(syscall) $(syshdr) FORCE
 	$(call if_changed,syshdr)
 
-$(uapi)/unistd_64.h: abis := common,64
-$(uapi)/unistd_64.h: $(syscall) $(syshdr) FORCE
-	$(call if_changed,syshdr)
-
-$(kapi)/syscall_table_32.h: abis := common,32
-$(kapi)/syscall_table_32.h: $(syscall) $(systbl) FORCE
-	$(call if_changed,systbl)
-
-$(kapi)/syscall_table_64.h: abis := common,64
-$(kapi)/syscall_table_64.h: $(syscall) $(systbl) FORCE
+$(kapi)/syscall_table_%.h: $(syscall) $(systbl) FORCE
 	$(call if_changed,systbl)
 
 uapisyshdr-y		+= unistd_32.h unistd_64.h