Update textclassifier TEST_MAPPING file.

Add CtsTextClassifierTestCases and TextClassifierServiceTest into
presubmit.

Bug: 154961272
Test: atest --test-mapping frameworks/base/core/java/android/service/textclassifier
Test: atest --test-mapping frameworks/base/core/java/android/view/textclassifier
Test: atest --test-mapping frameworks/base/services/core/java/com/android/server/textclassifier
Change-Id: I123eeb0ce11e2b159ebbf20fe81dc682cd347230
2 files changed