i2c-matroxfb: Struct init conversion

Convert the struct i2c_algo_bit_data initialization to proper C99
style.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Petr Vandrovec <vandrove@vc.cvut.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>