codec2: Gralloc blob linear buffer allocator

Bug: 143180475
Test: make libcodec2_vndk
Change-Id: I55de82ec7029d0759c4cf914ad6c92e170277c78
diff --git a/media/codec2/vndk/Android.bp b/media/codec2/vndk/Android.bp
index 4c529a6..e0b3939 100644
--- a/media/codec2/vndk/Android.bp
+++ b/media/codec2/vndk/Android.bp
@@ -16,6 +16,7 @@
     vendor_available: true,
 
     srcs: [
+        "C2AllocatorBlob.cpp",
         "C2AllocatorIon.cpp",
         "C2AllocatorGralloc.cpp",
         "C2Buffer.cpp",