Update for 9.6 CCI changes

[liamadvance]

This pull request implements the changes that were made in 9.6 to the CCI format, as mentioned on the 3dbrew NCSD page. These changes include:

• A field that is used to validate the cardbus encryption type found within the CardInfo region.
  • This was most likely implemented by Nintendo as protection against the Sky3DS flash card. Without this validation, any game cards that used the new cardbus encryption keys (1 and 2) could be dumped and modified to instead use the old cardbus encryption key (0), thus providing no additional security.
• A second field for the backup security version.
  • Yeah, I've got nothing for this one. The original field was already being verified as it was under the NCSD header RSA-2048 signature.

[jakcron]

Thank you @liamadvance, this looks good.