ARM: S3C24XX: Fix clkout mpx error

Bug correction: CLK Outputs cannot have XTAL as parent
Signed-off-by: NDavide Rizzo <elpa.rizzo@gmail.com>
[ben-linux@fluff.org: updated patch subject]
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

arch/arm/plat-s3c24xx/clock-dclk.c

@@ -129,7 +129,7 @@ static int s3c24xx_clkout_setparent(struct clk *clk, struct clk *parent)
 
 	/* calculate the MISCCR setting for the clock */
 
-	if (parent == &clk_xtal)
+	if (parent == &clk_mpll)
 		source = S3C2410_MISCCR_CLK0_MPLL;
 	else if (parent == &clk_upll)
 		source = S3C2410_MISCCR_CLK0_UPLL;