AAPT2: Add navigation type

Test: build succeeds
Change-Id: I7d49366c7cc4a93c29bad4cb9f13eec23ad05bd2
diff --git a/tools/aapt2/Resource_test.cpp b/tools/aapt2/Resource_test.cpp
index ad4e3ce..c557f3c 100644
--- a/tools/aapt2/Resource_test.cpp
+++ b/tools/aapt2/Resource_test.cpp
@@ -93,6 +93,10 @@
   ASSERT_NE(type, nullptr);
   EXPECT_EQ(*type, ResourceType::kMipmap);
 
+  type = ParseResourceType("navigation");
+  ASSERT_NE(type, nullptr);
+  EXPECT_EQ(*type, ResourceType::kNavigation);
+
   type = ParseResourceType("plurals");
   ASSERT_NE(type, nullptr);
   EXPECT_EQ(*type, ResourceType::kPlurals);