Update git submodules

* Update frameworks/support from branch 'androidx-master-dev'
  to d98b620b2d0de8d51c74227270860b81b571b3d3
  - Merge changes from topic "androidx-doclava-javaexec" into androidx-master-dev
    
    * changes:
      Running Doclava in parallel with other tasks via the Gradle Worker API
      Running doclava via javaexec rather than javadoc
    
  - Running Doclava in parallel with other tasks via the Gradle Worker API
    
    So that starting to run dokka doesn't need to wait for doclava to complete
    
    On my computer, this reduces the time to run `./cleanBuild.sh -y zipDoclavaDocs zipDokkaDocs`:
      from 9m52s
      to   8m59s
    
    Bug: 175149111
    Test: ./cleanBuild.sh -y zipDoclavaDocs zipDokkaDocs
    Test: Treehugger runs busytown/androidx.sh
    
    Note that this change is similar to aosp/1161553 ; that knowledge could make it easier to review
    
    Change-Id: Id3a1c8f7b142788d9809b10c4593c34272cb7c7f
    
  - Running doclava via javaexec rather than javadoc
    
    in preparation to invoke Doclava via the Gradle Worker API, which allows multiple tasks in one project to execute at once.
    
    Bug: 175149111
    Test: Run `./cleanBuild.sh -y zipDoclavaDocs` before and after this change, unzip the resulting zips (out/dist/doclava-public-docs-0.zip and out/dist/doclava-tip-of-tree-docs-0.zip), and see that their contents didn't change
    
    Test: Treehugger runs busytown/androidx.sh
    
    Change-Id: I4b61c41f340f9cc2afe0853294ba1d7407712248
    
diff --git a/frameworks/support b/frameworks/support
index 2b00d8e..d98b620 160000
--- a/frameworks/support
+++ b/frameworks/support
@@ -1 +1 @@
-Subproject commit 2b00d8e0a7b3f20b56ca9fb66b63fa523f7dd196
+Subproject commit d98b620b2d0de8d51c74227270860b81b571b3d3