ARM: imx: clk: No need to initialize phandle struct

commit 84344b43c (ARM: i.MX5: Allow DT clock providers) introduce the following
sparse warning:

arch/arm/mach-imx/clk.c:12:43: warning: Using plain integer as NULL pointer

There is no need to initialize phandle, so remove it.

Cc: Martin Fuzzey <mfuzzey@parkeon.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

arch/arm/mach-imx/clk.c

@@ -9,7 +9,7 @@ DEFINE_SPINLOCK(imx_ccm_lock);
 
 static struct clk * __init imx_obtain_fixed_clock_from_dt(const char *name)
 {
-	struct of_phandle_args phandle = {0};
+	struct of_phandle_args phandle;
 	struct clk *clk = ERR_PTR(-ENODEV);
 	char *path;