Restrict fields stripping to TYPE_MESSAGE

Section 1002 (/proc/version) is primitive data (TYPE_STRING)

Bug: 277334359
Bug: 328677623
Test: adb shell incident -p AUTOMATIC 1002 | protoc --decode_raw
Change-Id: I2f9728d542becd3690522b3a113a4760c7d324d2
1 file changed