Skip testNetworkRequest_forInterfaceWhileTogglingCarrier on lower kernel version.

Notice this test case fails on device such as coral running with an
older kernel version(e.g. 4.14) that might not support ioctl new
argument. Run this test only with 4.19 kernel or above instead.

Bug: 236783925
Test: atest EthernetManagerTest on cf
Test: atest EthernetManagerTest on flame
Change-Id: I82c99ff4378868c7cbcef72632b06fb918d07a70
1 file changed