staging: rtl8723bs: hal: Remove extra blank line

Remove multiple blank lines to conform Linux kernel coding style.
Reported by checkpatch in file Hal8723BReg.h

Signed-off-by: Beatriz Martins de Carvalho <martinsdecarvalhobeatriz@gmail.com>
Link: https://lore.kernel.org/r/7f48b48d92b54c1f5db29f0d23c8c1c666236c43.1618243073.git.martinsdecarvalhobeatriz@gmail.com


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