Add version check to prevent test fail on Android Q

Include androidx.core_core for androidx.core.os.BuildCompat.

Bug: 151293251
Test: atest CtsNetTestCasesLatestSdk:android.net.NetworkCapabilitiesTest

Change-Id: I8356aed1bdf2646671d045e10c9d0c8115c10ca5
Merged-In: I73ef7eececec757a6e9683b231bf73fcd8d49f8d
1 file changed