extra-repos/systemd/systemd: enable sysext and sysusers

These components will be required for immutability. Better to enable them now for testing than wait.

Working functionality:

• sysext
• sysusers

extra-repos/systemd/systemd/APKBUILD

@@ -5,7 +5,7 @@
 pkgname=systemd
 pkgver=256
 _pkgver="musl-v${pkgver//_/-}"
-pkgrel=4
+pkgrel=5
 pkgdesc="System and service manager"
 url="https://github.com/systemd/systemd"
 arch="all !ppc64le !armhf !s390x" # blocked by pmboostrap not supporting
@@ -173,7 +173,8 @@ build() {
 		-Dnss-mymachines=disabled \
 		-Dnss-resolve=disabled \
 		-Dnss-systemd=false \
-		-Dsysusers=false \
+		-Dsysext=true \
+		-Dsysusers=true \
 		-Dselinux=disabled \
 		\
 		-Dman=enabled\