Replace comma between expressions with semicolons.

Using a ',' in place of a ';' can have unintended side effects. Although
that is not the case here, it is seems best to use ';' unless ',' is
intended.

Found by inspection. No functional change intended. Compile tested only.
Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Link: https://lore.kernel.org/r/20240905024245.1642989-1-nichen@iscas.ac.cnSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>