powerpc: Typo s/use use/use/

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

arch/powerpc/include/asm/nohash/32/pte-40x.h

@@ -33,7 +33,7 @@
  *   is cleared in the TLB miss handler before the TLB entry is loaded.
  * - All other bits of the PTE are loaded into TLBLO without
  *   modification, leaving us only the bits 20, 21, 24, 25, 26, 30 for
- *   software PTE bits.  We actually use use bits 21, 24, 25, and
+ *   software PTE bits.  We actually use bits 21, 24, 25, and
  *   30 respectively for the software bits: ACCESSED, DIRTY, RW, and
  *   PRESENT.
  */