Disable PhysicalSocketTest.TestUdpReadyToSendIPv4 on Android.
Disable PhysicalSocketTest.TestUdpReadyToSendIPv4 on Android.

The test didn't previously run on Android bots, but was enabled by
mistake in https://codereview.webrtc.org/1426643003/

It used to be long to the rtc_unittests target, which also don't run
on Android unfortunately. For now, let's just disable this one test
on Android to get the bots go green.

BUG=4364
TBR=pthatcher@webrtc.org

Review URL: https://codereview.webrtc.org/1419033007 .

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#10464}

ShiftMediaProject/libilbc,TimothyGu/libilbc,TimothyGu/libilbc,TimothyGu/libilbc,ShiftMediaProject/libilbc,TimothyGu/libilbc,TimothyGu/libilbc,ShiftMediaProject/libilbc,ShiftMediaProject/libilbc,ShiftMediaProject/libilbc