CC3XX: Fix cipher abort for Chacha20

-This fixes an issue where the cipher abort
 function for Chacha20 always returns an error.

Signed-off-by: Georgios Vasilakis <georgios.vasilakis@nordicsemi.no>
Change-Id: I8767e1ee90718feff01eee1cfc63ad6cb18c2b6a
1 file changed