sh-pfc: r8a7790: Sort pin groups and functions alphabetically
sh-pfc: r8a7790: Sort pin groups and functions alphabetically

Navigating through the source code is hard enough without having to
manually search for groups and functions.

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

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