
Package a copy of the shim.efi file to /pxeboot to support UEFI secure boot. The recent grub2 update for CVE-2020-15705 requires the use of shim.efi in order to support kernel signature validation. Change-Id: If87925e1697b34d7ff1a7a770d9f13619dd9dd52 Partial-Bug: 1927730 Signed-off-by: Don Penney <don.penney@windriver.com>