[media] nuvoton-cir: remove unneeded EFM operation in nvt_cir_isr

Selecting the logical device in the interrupt handler is not needed
as no configuration register is accessed.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>