m68k: mm: Use PAGE_ALIGNED() helper

Use the existing PAGE_ALIGNED() helper instead of open-coding the same
operation.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/20200826130103.25381-1-geert@linux-m68k.org
1 file changed