clocksource: sh_cmt: Sort headers alphabetically
clocksource: sh_cmt: Sort headers alphabetically

This helps locating duplicates and inserting new headers.

Signed-off-by: Laurent Pinchart <ae960578cc5eca7b9b1dbc37d9caa6cb634f35e0@ideasonboard.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs