DaVinci: DM365: Correct USB parent clock

The parent clock for the USB source clock is actually PLL1 aux clock,
not PLL2 sysclk1.
Signed-off-by: NSandeep Paulraj <s-paulraj@ti.com>
Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>

arch/arm/mach-davinci/dm365.c

@@ -369,7 +369,7 @@ static struct clk timer3_clk = {
 
 static struct clk usb_clk = {
 	.name		= "usb",
-	.parent		= &pll2_sysclk1,
+	.parent		= &pll1_aux_clk,
 	.lpsc		= DAVINCI_LPSC_USB,
 };