Don't allow 3p apps to become voice recognizer automatically

Currently, If there is no default recognizer set using config_systemSpeechRecognizer, any 3p app defining recongition service could become the default recognizer automatically without user selection. Make sure that we only automatically select system apps rather random 3p app.

Test: Manual, install 3p app defining recognizer when no default or
system recognizer is available on the device
Bug: 352518318
Flag: EXEMPT CVE_FIX
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:0bc6ced90e2ee1e6140a4d87ee62923bdfd2ca93)
Cherrypick-From: https://googleplex-android-review.googlesource.com/q/commit:22600e902bceab659abeb2e540c3d24c5791c238
Merged-In: I52681da7381be4ebe6cf20b639508311f3a90eba
Change-Id: I52681da7381be4ebe6cf20b639508311f3a90eba