mach-ux500: set sd/mmc clock rate to 100MHz

The clock speed for the SD/MMC clock was incorrect, rectify it.
Signed-off-by: Philippe Langlais <philippe.langlais@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

arch/arm/mach-ux500/clock.c

@@ -313,7 +313,7 @@ static DEFINE_PRCMU_CLK_RATE(uartclk,	0x0, 5, UARTCLK, 38400000);
 static DEFINE_PRCMU_CLK(msp02clk,	0x0, 6, MSP02CLK);
 static DEFINE_PRCMU_CLK(msp1clk,	0x0, 7, MSP1CLK); /* v1 */
 static DEFINE_PRCMU_CLK_RATE(i2cclk,	0x0, 8, I2CCLK, 48000000);
-static DEFINE_PRCMU_CLK_RATE(sdmmcclk,	0x0, 9, SDMMCCLK, 50000000);
+static DEFINE_PRCMU_CLK_RATE(sdmmcclk,	0x0, 9, SDMMCCLK, 100000000);
 static DEFINE_PRCMU_CLK(slimclk,	0x0, 10, SLIMCLK);
 static DEFINE_PRCMU_CLK(per1clk,	0x0, 11, PER1CLK);
 static DEFINE_PRCMU_CLK(per2clk,	0x0, 12, PER2CLK);