Capsule updates tests have been skipped since
commit 659f97eb1fc3 ("scripts/Makefile.lib: EFI: Use capsule CRT instead of ESL file")
Remove that check since it's not needed anymore and re-enable the tests.
Fixes: 659f97eb1fc3 ("scripts/Makefile.lib: EFI: Use capsule CRT instead of ESL file")
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>