docs: ioctl-number.rst: add habanalabs driver IOCTL

Habanalabs driver in misc exposes several IOCTLs to userspace. Document the
letter and IOCTLs number range in ioctl-number.rst.

Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20200418174132.10597-1-oded.gabbay@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Documentation/userspace-api/ioctl/ioctl-number.rst

@@ -146,6 +146,7 @@ Code  Seq#    Include File                                           Comments
 'H'   40-4F  sound/hdspm.h                                           conflict!
 'H'   40-4F  sound/hdsp.h                                            conflict!
 'H'   90     sound/usb/usx2y/usb_stream.h
+'H'   00-0F  uapi/misc/habanalabs.h                                  conflict!
 'H'   A0     uapi/linux/usb/cdc-wdm.h
 'H'   C0-F0  net/bluetooth/hci.h                                     conflict!
 'H'   C0-DF  net/bluetooth/hidp/hidp.h                               conflict!