make libmedia_jni_utils depends on libgui

libmedia_jni_utils only has dependencies on libgui,
not entire libmedia_omx, it's linking to libmedia_omx
to get to libgui/bufferqueue headers.

bug: 129272021
test: builds

Change-Id: I48453cb53d36e6ecb2a6f6dd2b09f9a99e8479f0