staging: rtl8723bs: include: Fix open brace position in rtw_security.h

staging: rtl8723bs: include: Fix open brace position in rtw_security.h

This change improves code readability and consistency with the rest of
the kernel codebase.

Reported by `checkpatch.pl`:
WARNING: open brace '{' following function definitions or control
statements should be on the next line.

Signed-off-by: Sayyad Abid <sayyad.abid16@gmail.com>
Tested-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/20240912040409.3315067-2-sayyad.abid16@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>