staging: r8188eu: clean up spacing style issues in core/rtw_sta_mgt.c

staging: r8188eu: clean up spacing style issues in core/rtw_sta_mgt.c

Clean up spacing style issues in core/rtw_sta_mgt.c reported by
checkpatch.

WARNING: space prohibited between function name and open parenthesis '('
CHECK: spaces preferred around that '/' (ctx:VxV)
WARNING: space prohibited before semicolon

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210816155818.24005-23-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>