Camera2: Clean up cross-references

- Fix linkify to deal with a few more corner cases around '\n'
- Fix incorrect tag names
- Add test case for verifying linkify

Change-Id: I6dd26899eddc71bddcd53d3a0725c5ef97c2a39b
diff --git a/camera/docs/metadata_helpers_test.py b/camera/docs/metadata_helpers_test.py
index 2d3036c..4264c6e 100644
--- a/camera/docs/metadata_helpers_test.py
+++ b/camera/docs/metadata_helpers_test.py
@@ -130,6 +130,8 @@
 then testOuter1.testSection1.
 dynamic1 will ensue. That should be avoided if testOuter2.testSection2.
 Barring issues, testOuter1.testSection1.dynamic1, and testOuter2.testSection2.control1.
+In the third instance of testOuter1.testSection1.control1
+we will take the other option.
 If the path foo/android.testOuter1.testSection1.control1/bar.txt exists, then oh well.
 '''
     def filter_test(node):
@@ -146,6 +148,8 @@
 If *,
 then * will ensue. That should be avoided if testOuter2.testSection2.
 Barring issues, *, and *.
+In the third instance of *
+we will take the other option.
 If the path foo/android.testOuter1.testSection1.control1/bar.txt exists, then oh well.
 ****
 '''