Upgrade to 8.3.1

Created using ./update-from-external.sh 8.3.1

m -j32 droid
adb reboot bootloader
fastboot flashall -w
m -j32 cts
cts-tradefed run cts -m CtsTelephonyTestCases -t android.telephony.cts.PhoneNumberUtilsTest
m -j32 libphonenumber-test vogar dx
vogar --timeout 0 \
    --classpath out/target/common/obj/JAVA_LIBRARIES/libphonenumber-test_intermediates/classes.jack \
    com.google.i18n.phonenumbers

Bug: 35655217
Test: As described above

Change-Id: I58a4ea79762322603875a1be02c8a5542076191f
23 files changed