staging: vt6656: Remove duplicate code for the phy->service assignment

Take out the "phy->service" assignment from the if-else statement due to
it's the same for the two branches.

Signed-off-by: Oscar Carter <oscar.carter@gmx.com>
Link: https://lore.kernel.org/r/20200414153849.5785-6-oscar.carter@gmx.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>