Saves data from rlSslCertificateImportTable to RAM and flash. When
an external certificate should be copied to the device first we copy
it to rlSslCertificateImportTable and then this scalar is set to the
certificate id that we want to save -
1. All entries in rlSslCertificateImportTable that have this id and
their format is equal to the current value of rlSslCertificateSaveFormat
are concatenated.
2. If the imported certificate format is .. - section 1 result
is validated against the key with the same index. If validation fails
for any reason - the certificate is not saved and the setting this
scalar fails.
3. If the imported certificate format is PKCS12 - section1 result is
decrypted using rlSslImportedPKCS12CertificatePassphrase current value.
If decryption fails for any reason the PKCS12 certificate and key are
not saved to FLASH and setting this scalar fails.