Move to Android-specific NTP pool.
Move to Android-specific NTP pool.

Use "2.android.pool.ntp.org" since it returns both IPv4 and IPv6
addresses.  Verified that NTP client works correctly on both.

Change-Id: I0187ef4a6d3b353cfcc77957b1303ca01c67cbe9

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base