feroceon-kw2: lower i2c bus speed to 96 khz.

I2C bus speed is derived from the following:

Fscl = Ftclk / (10 * (M + 1) * 2^(N + 1))

Current settings for M and N were based on 133 MHz Tclk, but yield a 139 KHz
Fscl with our 200 MHz Tclk.

Change-Id: Iabb10f31a209ac4e91d1edacefdea1cd82714a9a
diff --git a/arch/arm/mach-feroceon-kw2/core.c b/arch/arm/mach-feroceon-kw2/core.c
index a5cf6c7..3b1afd1 100755
--- a/arch/arm/mach-feroceon-kw2/core.c
+++ b/arch/arm/mach-feroceon-kw2/core.c
@@ -223,7 +223,7 @@
 /* Platform devices list */
 
 static struct mv64xxx_i2c_pdata kw_i2c_pdata = {
-       .freq_m         = 8, /* assumes 166 MHz TCLK */
+       .freq_m         = 12, /* assumes 200 MHz TCLK */
        .freq_n         = 3,
        .timeout        = 1000, /* Default timeout of 1 second */
 };