device-samsung-dream: depend on postmarketos-base-downstream (MR 4497)

Postmarketos-base-downstream provides a x11 config file needed for GUI
to be brought up when using lightdm+x11 based UIs.

Fixes: https://gitlab.com/postmarketOS/pmaports/-/issues/2102

device/testing/device-samsung-dream/APKBUILD

@@ -1,13 +1,18 @@
 # Reference: <https://postmarketos.org/devicepkg>
 pkgname=device-samsung-dream
 pkgdesc="Samsung Galaxy S8/S8+"
-pkgver=0.1
-pkgrel=7
+pkgver=0.2
+pkgrel=0
 url="https://postmarketos.org"
 license="MIT"
 arch="aarch64"
 options="!check !archcheck"
-depends="postmarketos-base mkbootimg msm-fb-refresher"
+depends="
+	postmarketos-base
+	postmarketos-base-downstream
+	mkbootimg
+	msm-fb-refresher
+"
 makedepends="devicepkg-dev"
 source="deviceinfo initfs-hook.sh"
 subpackages="