stk17ta8: renaming e-mail corrections following split of GE Fanuc joint venture

This patch corrects author and copyright notices in the stk17ta8 driver
following the split-up of the GE Fanuc joint venture.

Signed-off-by: Martyn Welch <martyn.welch@ge.com>
Acked-by: Thomas Hommel <thomas.hommel@ge.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>