staging: rtl8723au: Move open braces to the previous line.

Correct coding style errors in rtw_efuse.c. checkpatch.pl reported:
ERROR: that open brace { should be on the previous line

Signed-off-by: Andreas Schlick <ninox@posteo.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>