Convert the pose buffer into a more generic named buffer

* It's likely that we'll have more than one pose buffer
* It's cleaner to separate the vsync info into a separate buffer

Bug: 37001881
Bug: 37240552
Test: Added and manually ran TestNamedBuffersSetup
Change-Id: I76621d3cfa8c21c9d5d1e6e648854067673be9ab
diff --git a/cmds/vr/vrscreencap/Android.mk b/cmds/vr/vrscreencap/Android.mk
index bd0b224..804afc9 100644
--- a/cmds/vr/vrscreencap/Android.mk
+++ b/cmds/vr/vrscreencap/Android.mk
@@ -6,6 +6,7 @@
 	vrscreencap.cpp
 
 LOCAL_STATIC_LIBRARIES := \
+	libbufferhub \
 	libdisplay \
 	libimageio \
 	libpdx_default_transport \
@@ -14,7 +15,8 @@
 	libcutils \
 	liblog \
 	libpng \
-	libsync
+	libsync \
+	libui \
 
 LOCAL_MODULE := vrscreencap