[fuchsia] Add libva-utils to README.fuchsia.md

Change-Id: I97f3e7d7c0f8b9a18cf33db49f24346f048a4c55
diff --git a/README.fuchsia.md b/README.fuchsia.md
index f2cd137..832e743 100644
--- a/README.fuchsia.md
+++ b/README.fuchsia.md
@@ -13,12 +13,13 @@
 
 ### Dependencies
 
-libva and gmmlib are needed to build the media-driver.  From Fuchsia root:
+libva and gmmlib are needed to build the media-driver.  libva-utils is useful for testing. From Fuchsia root:
 
 mkdir -p third_party/intel
 git clone https://fuchsia.googlesource.com/third_party/github.com/intel/libva third_party/intel/libva
 git clone https://fuchsia.googlesource.com/third_party/github.com/intel/gmmlib third_party/intel/gmmlib
 git clone https://fuchsia.googlesource.com/third_party/github.com/intel/media-driver third_party/intel/media-driver
+git clone https://fuchsia.googlesource.com/third_party/github.com/intel/libva-utils third_party/intel/libva-utils
 
 ### Command
 
@@ -30,6 +31,10 @@
 The out of tree build emits shared libraries which currently are imported into the GN build.
 Eventually the shared libraries will be made available in CIPD.
 
+For run the mpeg2vldemo, which supports result validation:
+
+--with //third_party/intel/libva-utils/fuchsia:mpeg2vldemo
+
 ### Flags
 
 For debug logging:
@@ -39,3 +44,5 @@
 ## Usage
 
 VA entry points are provided by libva.so.  This library dynamically links to the client driver library, iHD_drv_video.so.
+
+fx test mpeg2vldemo