tests: Use RSA key format in ap_wpa2_eap_tls_blob

This format as a DER encoded blob is supported by both OpenSSL and
GnuTLS while the previous OpenSSL specific format did not get accepted
by GnuTLS.

Signed-off-by: Jouni Malinen <j@w1.fi>

tests/hwsim/auth_serv/user.rsa-key

@@ -0,0 +1,15 @@
+-----BEGIN RSA PRIVATE KEY-----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+-----END RSA PRIVATE KEY-----

tests/hwsim/test_ap_eap.py

@@ -1125,7 +1125,7 @@ def test_ap_wpa2_eap_tls_blob(dev, apdev):
     cert = read_pem("auth_serv/user.pem")
     if "OK" not in dev[0].request("SET blob usercert " + cert.encode("hex")):
         raise Exception("Could not set usercert blob")
-    key = read_pem("auth_serv/user.key")
+    key = read_pem("auth_serv/user.rsa-key")
     if "OK" not in dev[0].request("SET blob userkey " + key.encode("hex")):
         raise Exception("Could not set cacert blob")
     eap_connect(dev[0], apdev[0], "TLS", "tls user", ca_cert="blob://cacert",