Generate skippedCtsTest.txt

It's partial cherry-pick of 59ea0c3b486545395970cc1cc5ab92d524266a3c
  https://r.android.com/2748533

"result: EXEC_FAILED" isn't necessary and is removed
since http://ag/715535 was submitted and the default is EXEC_FAILED.

The JSON object keys are now double-quoted, and it's more aligned
with the JSON standard.

Bug: 287042293
Bug: 310050493
Test: m CtsLibcoreTestCases
Merged-in: I1c0ca00076689853d63c91df3d84d364549c8b78
Change-Id: I6f469c42043d3658d0ea954774e5360b44ebec5b
1 file changed