staging: wilc1000: coreconfigurator: Change return(X) to return X

Changed 'return(X)' to 'return X' in coreconfigurator.c
to satisfy checkpatch.pl warning:

ERROR: return is not a function, parentheses are not required

Signed-off-by: Stanislav Kholmanskikh <kholmanskikh.s.s@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>