selftests/sgx: Add EXPECT_EEXIT() macro

mainline inclusion
from mainline-v5.14-rc1
commit b334fb6f
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4SIGI


CVE: NA

--------------------------------

Add EXPECT_EEXIT() macro, which will conditionally print the exception
information, in addition to

  EXPECT_EQ(self->run.function, EEXIT);

Intel-SIG: commit b334fb6f selftests/sgx: Add EXPECT_EEXIT() macro
Backport for SGX Foundations support

Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Fan Du <fan.du@intel.com> #openEuler_contributor
Signed-off-by: Laibin Qiu <qiulaibin@huawei.com>
Reviewed-by: Bamvor Zhang <bamvor.zhang@suse.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>