[media] media: rc: nuvoton: replace usage of spin_lock_irqsave in ISR

Kernel takes care that interrupts from one source are serialized.
So there's no need to use spinlock_irq_save.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
1 file changed