kbuild: cscope - filter out .tmp_* in find_sources

remove .tmp_kallsyms*.S in cscope.files
Signed-off-by: NYinghai Lu <yinghai.lu@sun.com>
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>

Makefile

@@ -1351,7 +1351,7 @@ define find-sources
 	  find $(__srctree)include/asm-generic $(RCS_FIND_IGNORE) \
 	       -name $1 -print; \
 	  find $(__srctree) $(RCS_FIND_IGNORE) \
-	       \( -name include -o -name arch \) -prune -o \
+	       \( -name include -o -name arch -o -name '.tmp_*' \) -prune -o \
 	       -name $1 -print; \
 	  )
 endef