Enable error prone against all CTS harness subproject

Also fix the issue reported with error build current rules.

Test: make cts javac-check -j64 RUN_ERROR_PRONE=true
Bug: 37854485
Change-Id: If5e9ffd6fbf5caf14e9ef88f2e745c000c6a2df8
(cherry picked from commit e6892fd9b35bad58921b4be7abed92a3dd5fc34e)
19 files changed