mec1322: I2c wedge corrected
mec1322: I2c wedge corrected

i2c levels were not reporting correct value as programming the
controller to switch to Bit Bang mode was not enabled.

BUG=chrome-os-partner:39400
BRANCH=None
TEST=Wedge condition was simulated and unwedge was validated using
Oscilloscope
1. SDA was grounded, ran i2cxfer console command,
SCL line creates pulses when SDA gets wedged.
2.SCL was grounded to create cloack stretching, ran i2cxfer console
command and unwedge was confirmed.

Change-Id: Id96d8460820b7d19961ed94d1262112ebd146636
Signed-off-by: Divya Jyothi <7fa6690d0a542ccce445e16fba24c5f6700e0873@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/267137
Reviewed-by: Shawn N <5259333ce42e3ace6a73988cec7115ed9d3a661a@chromium.org>

akappy7/ChromeOS_EC_LED_Diagnostics,coreboot/chrome-ec,akappy7/ChromeOS_EC_LED_Diagnostics,md5555/ec,akappy7/ChromeOS_EC_LED_Diagnostics,fourier49/BZ_DEV_EC,fourier49/BIZ_EC,fourier49/BZ_DEV_EC,md5555/ec,coreboot/chrome-ec,fourier49/BIZ_EC,coreboot/chrome-ec,akappy7/ChromeOS_EC_LED_Diagnostics,fourier49/BIZ_EC,fourier49/BIZ_EC,coreboot/chrome-ec,fourier49/BZ_DEV_EC,akappy7/ChromeOS_EC_LED_Diagnostics,coreboot/chrome-ec,md5555/ec,fourier49/BZ_DEV_EC,md5555/ec,coreboot/chrome-ec