Add GNSS HAL v3.0 (hardware/interfaces)

Bug: 158518085

Test: atest VtsHalGnssV3_0TargetTest
      atest VtsHalGnssV2_1TargetTest
      atest VtsHalGnssV2_0TargetTest
      atest VtsHalGnssV1_1TargetTest
      atest VtsHalGnssV1_0TargetTest

Change-Id: Id4ac1e31207da7cfff3f1885c84748785bec19ba
diff --git a/gnss/3.0/default/OWNERS b/gnss/3.0/default/OWNERS
new file mode 100644
index 0000000..b7b4a2e
--- /dev/null
+++ b/gnss/3.0/default/OWNERS
@@ -0,0 +1,4 @@
+gomo@google.com
+smalkos@google.com
+wyattriley@google.com
+yuhany@google.com