Report mock locations in 2.0 default implementation

- Create android.hardware.gnss@common-default-lib for sharing common
default implementation code.
- Create android.hardware.gnss@common-vts-lib for sharing common VTS
code.

Bug: 121217686
Change-Id: I35c127c23d97ab9a5c6ee13b36fbfe9c3708e3f3
Fixes: 121217686
Test: tested on cuttlefish
diff --git a/gnss/common/OWNERS b/gnss/common/OWNERS
new file mode 100644
index 0000000..3ed36da
--- /dev/null
+++ b/gnss/common/OWNERS
@@ -0,0 +1,7 @@
+wyattriley@google.com
+gomo@google.com
+smalkos@google.com
+yuhany@google.com
+
+# VTS team
+yim@google.com