anaconda: do not drop /boot from automatic partitioning

Create /boot even on UEFI systems, to help migrating to R4.1 with
grub2-efi (needing access to unencrypted /boot).

QubesOS/qubes-issues#4902

anaconda/0001-anaconda-add-Qubes-installclass.patch

@@ -17,7 +17,7 @@ new file mode 100644
 index 000000000..e98912b63
 --- /dev/null
 +++ b/pyanaconda/installclasses/qubes.py
-@@ -0,0 +1,93 @@
+@@ -0,0 +1,89 @@
 +#
 +# qubes.py
 +#
@@ -92,10 +92,6 @@ index 000000000..e98912b63
 +                storage.autopart_requests.remove(autoreq)
 +            if autoreq.mountpoint == "/boot/efi":
 +                autoreq.max_size=Size("500MiB")
-+            if autoreq.mountpoint == "/boot" and \
-+                    isinstance(platform, blivet.platform.EFI):
-+                # xen.efi don't need /boot
-+                storage.autopart_requests.remove(autoreq)
 +
 +    def productMatches(self, oldprod):
 +        if oldprod is None: