Fix: genhd.h removed in SLE15 SP5

Fix: genhd.h removed in SLE15 SP5

See upstream SUSE commit:

    commit f9d378fde421f331e9f1f18f3b2cbdaf9fcd0a1a
    Author: Hannes Reinecke <hare@suse.de>
    Date:   Sat Nov 26 13:51:49 2022 +0100

        - block: remove genhd.h (jsc#PED-1183).
        - Refresh
          patches.suse/0006-nvdimm-blk-Delete-the-block-aperture-window-driver.patch.
        - Refresh
          patches.suse/0007-PM-hibernate-encrypt-hidden-area.patch.
        - Refresh patches.suse/target-add-rbd-backend.patch.

        suse-commit: dd0982ae4edd5e7142e6ed1676269d54ac51d7df

Change-Id: I4b2092fc4547d2515724a6065e4656eb33994c00
Signed-off-by: Kienan Stewart <kstewart@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>