Replace a comma between expression statements by a semicolon.

Fixes: 7130856f ("rtc: twl: add NVRAM support")
Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Link: https://lore.kernel.org/r/20240716030252.400340-1-nichen@iscas.ac.cnSigned-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>