w1: mxc_w1: Adapt the clock name to the new clock framework

With the new i.mx clock framework the mxc_w1 clock is registered as:

clk_register_clkdev(clk[owire_gate], NULL, "mxc_w1.0");

So we do not need to pass "owire" string and can use NULL instead.

While at it, also fix the clock error handling code.

Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
-----
Changes since v2:
- Add Ack's
Changes since v1:
- Fix clock error handling
 drivers/w1/masters/mxc_w1.c |   10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>