UBI: rename ubi_dbg_dump_mkvol_req

I am going to remove the "UBI debugging" compilation option and make the
debugging stuff to be always compiled it. This patch is a preparation
which renames 'ubi_dbg_dump_mkvol_req()' to 'ubi_dump_mkvol_req()'.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
diff --git a/drivers/mtd/ubi/debug.h b/drivers/mtd/ubi/debug.h
index b897c4ab..c98d2c8 100644
--- a/drivers/mtd/ubi/debug.h
+++ b/drivers/mtd/ubi/debug.h
@@ -64,7 +64,7 @@
 void ubi_dump_vtbl_record(const struct ubi_vtbl_record *r, int idx);
 void ubi_dump_sv(const struct ubi_scan_volume *sv);
 void ubi_dump_seb(const struct ubi_scan_leb *seb, int type);
-void ubi_dbg_dump_mkvol_req(const struct ubi_mkvol_req *req);
+void ubi_dump_mkvol_req(const struct ubi_mkvol_req *req);
 int ubi_dbg_check_all_ff(struct ubi_device *ubi, int pnum, int offset, int len);
 int ubi_dbg_check_write(struct ubi_device *ubi, const void *buf, int pnum,
 			int offset, int len);
@@ -201,7 +201,7 @@
 static inline void ubi_dump_seb(const struct ubi_scan_leb *seb,
 				int type)                            { return; }
 static inline void
-ubi_dbg_dump_mkvol_req(const struct ubi_mkvol_req *req)              { return; }
+ubi_dump_mkvol_req(const struct ubi_mkvol_req *req)                  { return; }
 static inline void
 ubi_dbg_print_hex_dump(const char *l, const char *ps, int pt, int r,
 		       int g, const void *b, size_t len, bool a)     { return; }