OvmfPkg/IndustryStandard/Xen: replace MIT license text with SPDX ID
The header files under "OvmfPkg/Include/IndustryStandard/Xen" include the
MIT License text. Replace those license blocks with
"SPDX-License-Identifier: MIT" (which refers to
<https://spdx.org/licenses/MIT.html>) for easier parsing by machines (and
humans).
This follows the tree-wide adoption of "SPDX-License-Identifier"s, made
for <https://bugzilla.tianocore.org/show_bug.cgi?id=1373>.
Cc: Anthony Perard <anthony.perard@citrix.com> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Jordan Justen <jordan.l.justen@intel.com> Cc: Julien Grall <julien.grall@arm.com> Cc: Lars Kurth <lars.kurth@citrix.com> Cc: xen-devel@lists.xenproject.org
Bugzilla: https://bugzilla.tianocore.org/show_bug.cgi?id=1654 Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>