screen-capture-utils: Add dependency and binary for kmsvnc.

http://go/kmsvnc-design

BUG=b:168259048
TEST=emerge-rammus-arc-r chromeos-base/screen-capture-utils && \
  cros deploy localhost:2229 chromeos-base/screen-capture-utils
  # and then run kmsvnc and connect via VNC.

Cq-Depend: chromium:2574148
Change-Id: Ic5d3ee04b4dd251970c0cb442a1d643e5efc27e9
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/chromiumos-overlay/+/2557743
Tested-by: Junichi Uekawa <uekawa@chromium.org>
Reviewed-by: Shao-Chuan Lee <shaochuan@chromium.org>
Commit-Queue: Junichi Uekawa <uekawa@chromium.org>
diff --git a/chromeos-base/screen-capture-utils/screen-capture-utils-9999.ebuild b/chromeos-base/screen-capture-utils/screen-capture-utils-9999.ebuild
index 2015a18..f3b81f8 100644
--- a/chromeos-base/screen-capture-utils/screen-capture-utils-9999.ebuild
+++ b/chromeos-base/screen-capture-utils/screen-capture-utils-9999.ebuild
@@ -26,6 +26,7 @@
 	!chromeos-base/screenshot
 	media-libs/libpng:0=
 	media-libs/minigbm:=
+	net-libs/libvncserver
 	x11-libs/libdrm:=
 	virtual/opengles"
 
@@ -33,5 +34,6 @@
 	x11-drivers/opengles-headers"
 
 src_install() {
+	dosbin "${OUT}/kmsvnc"
 	dosbin "${OUT}/screenshot"
 }