Add proto3 support for care_map

Switching to the protobuf format helps to make the care_map more
extensible. As we have such plans in the future, add the support to
parse the protobuf message in the update_verifier.

Bug: 77867897
Test: unit tests pass, update_verifier successfully verifies a care_map.pb
Change-Id: I9fe83cb4dd3cc8d6fd0260f2a47338fe142d3938
diff --git a/update_verifier/care_map.proto b/update_verifier/care_map.proto
new file mode 100644
index 0000000..442ddd4
--- /dev/null
+++ b/update_verifier/care_map.proto
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+syntax = "proto3";
+
+package UpdateVerifier;
+option optimize_for = LITE_RUNTIME;
+
+message CareMap {
+  message PartitionInfo {
+    string name = 1;
+    string ranges = 2;
+    string id = 3;
+    string fingerprint = 4;
+  }
+
+  repeated PartitionInfo partitions = 1;
+}