arm: omap2: clksel: fix compile warningOrganization: Texas Instruments\n

Fix the following compile warning:
arch/arm/mach-omap2/clkt_clksel.c: In function '_get_div_and_fieldval':
arch/arm/mach-omap2/clkt_clksel.c💯35: warning: 'max_clkr' may be
used uninitialized in this function

Acked-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/clkt_clksel.c

@@ -97,7 +97,7 @@ static u8 _get_div_and_fieldval(struct clk *src_clk, struct clk *clk,
 				u32 *field_val)
 {
 	const struct clksel *clks;
-	const struct clksel_rate *clkr, *max_clkr;
+	const struct clksel_rate *clkr, *max_clkr = NULL;
 	u8 max_div = 0;
 
 	clks = _get_clksel_by_parent(clk, src_clk);