smb347_charger: Add a small delay after OTG-disable.

smb347_charger: Add a small delay after OTG-disable.

BZ: 39775

When OTG disabled and charging enabled, send the uevent after a
short delay, as Status Register C is not updated immediately.

Change-Id: I24160a7a5f9350aa50ca5dbad6af5b0c23a4188b
Signed-off-by: Pavan Kumar S <pavan.kumar.s@intel.com>
Reviewed-on: http://android.intel.com:8080/51924
Reviewed-by: Tc, Jenny <jenny.tc@intel.com>
Reviewed-by: Jena, TapanX <tapanx.jena@intel.com>
Tested-by: Kallappa Manjanna, MadhukumarX <madhukumarx.kallappa.manjanna@intel.com>
Reviewed-by: buildbot <buildbot@intel.com>
Tested-by: buildbot <buildbot@intel.com>