staging: rtl8723bs: Clean up function declations

Clean up multiline function declartions in hal_phy_cfg.h
to improve code readablility

Signed-off-by: Aditya Jain <aditya.jainadityajain.jain@gmail.com>
Link: https://lore.kernel.org/r/20200729192136.23828-3-aditya.jainadityajain.jain@gmail.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>