XXXXX update i40e Intel code to 1.12.16
        (includes: Restore 9601 & 13041, fix one header file)

@@ -8,12 +8,11 @@
 # source.  A copy of the CDDL is also available via the Internet at
 # http://www.illumos.org/license/CDDL.
 #
 
 This directory contains files extracted from the Intel FreeBSD ixl
-driver. This uses the FreeBSD stable/12 branch, git SHA
-e88bf6998796b7e286cc4c2590e09a4292b9c5c9. 
+driver. This uses the downloaded-from-Intel "ixl-1.12.16" source tree.
 
 The following illumos changes have further  modified the common code:
 
 9601 Divide by zero in i40e_get_available_resources()
 13041 i40e_get_available_resources() broken again for X722 part