Staging: iio: trigger: Use braces on both branches of if statement

Fix style issue related to missing braces, detected by checkpatch.pl.

Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --cc drivers/staging/iio/trigger/iio-trig-periodic-rtc.c
Simple merge