[cryptotest] Switch security level to low for KMAC functest

#27673 introduced device security checks that are
enabled when the key.securitry_level > kOtcryptoKeySecurityLevelLow.

As this check fails on FPGAs (the corresponding ROM does not enable
some of the security features), set
key.security_level = kOtcryptoKeySecurityLevelLow for the
kmac_functest. This does not influence the KMAC testing as currently
the security level is not used within the KMAC driver..

Signed-off-by: Pascal Nasahl <[email protected]>

Author: nasahlpa

sw/device/tests/crypto/kmac_sideload_functest.c

@@ -58,7 +58,7 @@ static kmac_test_vector_t kKmacTestVectors[] = {
                         .key_length = kKmacSideloadKeyLengthBytes,
                         .hw_backed = kHardenedBoolTrue,
                         .exportable = kHardenedBoolFalse,
-                        .security_level = kOtcryptoKeySecurityLevelHigh,
+                        .security_level = kOtcryptoKeySecurityLevelLow,
                     },
                 .keyblob_length = 32,
                 .keyblob =
@@ -114,7 +114,7 @@ static kmac_test_vector_t kKmacTestVectors[] = {
                         .key_length = kKmacSideloadKeyLengthBytes,
                         .hw_backed = kHardenedBoolTrue,
                         .exportable = kHardenedBoolFalse,
-                        .security_level = kOtcryptoKeySecurityLevelHigh,
+                        .security_level = kOtcryptoKeySecurityLevelLow,
                     },
                 .keyblob_length = 32,
                 .keyblob =
@@ -194,7 +194,7 @@ static kmac_test_vector_t kKmacTestVectors[] = {
                         .key_length = kKmacSideloadKeyLengthBytes,
                         .hw_backed = kHardenedBoolTrue,
                         .exportable = kHardenedBoolFalse,
-                        .security_level = kOtcryptoKeySecurityLevelHigh,
+                        .security_level = kOtcryptoKeySecurityLevelLow,
                     },
                 .keyblob_length = 32,
                 .keyblob =