intel_scu_watchdog: define CONFIG_DISABLE_SCU_WATCHDOG=y

intel_scu_watchdog: define CONFIG_DISABLE_SCU_WATCHDOG=y

BZ: 27691

Enable the ability to disable the kernel watchdog by cmdline.
For this purpose, add intel_scu_watchdog.disable_kernel_watchdog=1 to
the cmdline. Needed for debug (breakpoints)

Change-Id: Ib04d73ee9063487865720219cd0341b613eee416
Reviewed-on: http://android.intel.com:8080/41376
Reviewed-by: Gross, Mark <mark.gross@intel.com>
Tested-by: Romieu, Benoit <benoit.romieu@intel.com>
Reviewed-by: buildbot <buildbot@intel.com>
Tested-by: buildbot <buildbot@intel.com>