sirenia: Add dbus deps to sirenia ebuild

Add dbus dependencies to the sirenia ebuild. We will use dbus to make
requests to dugong from within ChromeOS.

BUG=b:162096925
TEST=emerged sirenia

Change-Id: I2748c38b132921fdb33a35c66409718d0a01541d
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/chromiumos-overlay/+/2412812
Reviewed-by: Allen Webb <allenwebb@google.com>
Tested-by: Allen Webb <allenwebb@google.com>
Commit-Queue: Nicole Anderson-Au <nvaa@google.com>
diff --git a/chromeos-base/sirenia/sirenia-9999.ebuild b/chromeos-base/sirenia/sirenia-9999.ebuild
index adb46c9..5197f6c 100644
--- a/chromeos-base/sirenia/sirenia-9999.ebuild
+++ b/chromeos-base/sirenia/sirenia-9999.ebuild
@@ -22,6 +22,8 @@
 RDEPEND=""
 
 DEPEND="${RDEPEND}
+	chromeos-base/chromeos-dbus-bindings-rust:=
+	=dev-rust/dbus-0.6*:=
 	=dev-rust/getopts-0.2*:=
 	>=dev-rust/libc-0.2.44:= <dev-rust/libc-0.3
 	>=dev-rust/flexbuffers-0.1.1:= <dev-rust/flexbuffers-0.2