openssl: Disable padding after initializing the cipher suite

openssl: Disable padding after initializing the cipher suite

according to OpenSSL documentation [1], EVP_CIPHER_CTX_set_padding()
should be called after EVP_EncryptInit_ex(), EVP_DecryptInit_ex(), or
EVP_CipherInit_ex(). Not doing this causes EVP_CIPHER_CTX_set_padding()
to return false on OpenSSL-3.0.0, resulting in the impossibility to
connect in many scenarios. Fix this changing the order of function calls
where needed.

[1] https://www.openssl.org/docs/man1.1.1/man3/EVP_CIPHER_CTX_set_padding.html

Reported-by: Vladimir Benes <vbenes@redhat.com>
Signed-off-by: Davide Caratti <davide.caratti@gmail.com>