The QueryVariableInfo() implementation in U-Boot does not check properly
for all the invalid inputs conditions and we already mark some failures as
"known u-boot limitations".

The new ACS-IR v1.0 uses a new SCT version with commit 814b2af535d9
("uefi-sct/SctPkg: uefi-sct:QueryVariableInfo(EFI_VARIABLE_NON_VOLATILE)"),
which causes a new failure.

Mark this new failure as "known u-boot limitation".

Signed-off-by: Vincent Stehlé <vincent.stehle@arm.com>