device-samsung-p4wifi: install xf86-video-opentegra for x11 (MR 911)

device/testing/device-samsung-p4wifi/APKBUILD

@@ -2,12 +2,11 @@
 pkgname=device-samsung-p4wifi
 pkgdesc="Galaxy Tab 10.1"
 pkgver=0.3
-pkgrel=11
+pkgrel=12
 url="https://postmarketos.org"
 license="MIT"
 arch="armv7"
 options="!check !archcheck"
-# FIXME xf86-video-opentegra was removed because it doesn't build anymore, see postmarketOS/pmaports#339
 depends="postmarketos-base
 	linux-samsung-p4wifi
 	mkbootimg
@@ -15,7 +14,7 @@ depends="postmarketos-base
 	mesa-dri-swrast
 	libvdpau-tegra"
 makedepends="devicepkg-dev"
-subpackages="$pkgname-nonfree-firmware:nonfree_firmware"
+subpackages="$pkgname-nonfree-firmware:nonfree_firmware $pkgname-x11"
 source="deviceinfo
 	modules-load.conf
 	modprobe.conf
@@ -47,6 +46,12 @@ nonfree_firmware() {
 	mkdir "$subpkgdir"
 }
 
+x11() {
+	install_if="$pkgname xorg-server"
+	depends="xf86-video-opentegra"
+	mkdir "$subpkgdir"
+}
+
 sha512sums="916f430f9fe51f79b93fd2bd1249ea214ffb9d586e9850cac7448e59851530faf536147b1f0d2f3636de5632c273aeaa2418e7dc2f497ee1fc9a5a5a6006970a  deviceinfo
 e457d1095b4c5da105d83a3951ca8d4c5074384a1280dcc95f8a8c24aff64c32a807968ad449d335fbafba528050436c283036869fc979aced6e613892e46fca  modules-load.conf
 56b865bab0714aed53bd6535ebefd2f3629ec78786e8f87dcae4637cfacb5912d28dc39d1fe0287d34bb36b4a8371481f54647e1b25190afbcd23ed30fe7edac  modprobe.conf