net: stmmac: using pm_runtime_resume_and_get instead of pm_runtime_get_sync

Using pm_runtime_resume_and_get is more appropriate
for simplifing code

Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn>
Link: https://lore.kernel.org/r/20220408081250.2494588-1-chi.minghao@zte.com.cn


Signed-off-by: Jakub Kicinski <kuba@kernel.org>