[FEATURE] #5186 Add an automatic update function for contact_phone

Change-Id: Icf163114f6cadd2b82b6b13ddd773bb2f00f6824
Reviewed-on: http://review.typo3.org/34888
Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Tested-by: Oliver Klee <typo3-coding@oliverklee.de>