AAPT2: Add navigation type

Test: build succeeds
Change-Id: I7d49366c7cc4a93c29bad4cb9f13eec23ad05bd2
diff --git a/tools/aapt2/Resource.cpp b/tools/aapt2/Resource.cpp
index 35971e7..a9f5f29 100644
--- a/tools/aapt2/Resource.cpp
+++ b/tools/aapt2/Resource.cpp
@@ -61,6 +61,8 @@
       return "menu";
     case ResourceType::kMipmap:
       return "mipmap";
+    case ResourceType::kNavigation:
+      return "navigation";
     case ResourceType::kPlurals:
       return "plurals";
     case ResourceType::kRaw:
@@ -98,6 +100,7 @@
     {"layout", ResourceType::kLayout},
     {"menu", ResourceType::kMenu},
     {"mipmap", ResourceType::kMipmap},
+    {"navigation", ResourceType::kNavigation},
     {"plurals", ResourceType::kPlurals},
     {"raw", ResourceType::kRaw},
     {"string", ResourceType::kString},