Gentoo: Actually we can enable both GENTOO_LINUX_INIT_SCRIPT and GENT…

…OO_LINUX_INIT_SYSTEMD, so let's do that.

Fixes #1006
Kinda.

linux-tkg-config/prepare

@@ -1029,8 +1029,8 @@ _tkg_srcprep() {
 
   if [ "$_distro" = "Gentoo" ]; then
     # Default config for Gentoo as defined in kconfig
-    _enable "GENTOO_LINUX" "GENTOO_LINUX_UDEV" "GENTOO_LINUX_PORTAGE" "GENTOO_LINUX_INIT_SCRIPT" "GENTOO_PRINT_FIRMWARE_INFO"
-    _disable "GENTOO_LINUX_INIT_SYSTEMD" "GENTOO_KERNEL_SELF_PROTECTION" # Should we enable systemd support?
+    _enable "GENTOO_LINUX" "GENTOO_LINUX_UDEV" "GENTOO_LINUX_PORTAGE" "GENTOO_LINUX_INIT_SCRIPT" "GENTOO_PRINT_FIRMWARE_INFO" "GENTOO_LINUX_INIT_SYSTEMD"
+    _disable "GENTOO_KERNEL_SELF_PROTECTION"
   fi
 
   # Prevent Debian and Ubuntu to sign stuff because it breaks stuff