[media] lgdt3306a: Remove FSF address

Fix this CodingStyle error:

	ERROR: Do not include the paragraph about writing to the Free Software Foundation's mailing address from the sample GPL notice. The FSF has changed addresses in the past, and may do so ag$
	#56: FILE: drivers/media/dvb-frontends/lgdt3306a.c:19:
	+ *    along with this program; if not, write to the Free Software$

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>