Add a top-level TEST_MAPPING for libcore.

This runs everything from CtsLibcoreTestCases except for the slowest
tests. The measured running time on a standard virtual device is about
12 minutes.

This was generated using the script in
https://r.android.com/1260471. See the instructions in the README in
that change for details.

Test: atest --test-mapping libcore
Bug: 130283485
Change-Id: I14b26ba91f327716100a0b87923252b3f78872fa
1 file changed