Bug 20439: Sort SMS providers in alphabetical order by DB field

Bug 20439: Sort SMS providers in alphabetical order by DB field

To test:
1/ Add 'Email' to the 'SMSSendDriver' system preference.
2/ Make sure 'EnhancedMessagingPreferencesOPAC' and 'EnhancedMessagingPreferences' are turned on.
3/ Add some SMS providers (/cgi-bin/koha/admin/sms_providers.pl) with different names.
4/ Notice on memberentry.pl and opac-messaging.pl the SMS providers sort by when they were added, not alphabetically.
5/ Apply patch and restart services.
6/ Look at memberentry.pl and opac-messaging.pl and notice that they SMS providers now sort alphabetically.

Signed-off-by: George Williams <george@nekls.org
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>