scripts/spelling.txt: spelling of uninitialized

I just did a spelling mistake of uninitialized and wrote that as
unintialized.  Fortunately I noticed it in my final review.
Signed-off-by: NSudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

scripts/spelling.txt

@@ -990,6 +990,7 @@ unexpectd||unexpected
 unexpeted||unexpected
 unfortunatelly||unfortunately
 unifiy||unify
+unintialized||uninitialized
 unknonw||unknown
 unknow||unknown
 unkown||unknown