RACF - Support of RSA keysize of 8192bit for RACDCERT with zOS 3.2

With zOS 3.2 ICSF does support the key generation of 8192 bit:

ICSF Panel 5.6.6 (CSFPKY22)
[.....]
Generate a new asymmetric key pair record. Select one key type/size:
RSA key bit length:  ____ (512 - 8192)
[.....]                           

But when using RACF RACDCERT command to generate a certificate with the same key size, the command fails:

IRRD125I The key size that was specified or defaulted is not acceptable.  The request is not processed.

What the ICSF manual states in Chapter 3 . Application Programming Interfaces and key management (https://www.ibm.com/docs/en/SSLTBW_3.2.0/pdf/csfb500_icsf_overview_hcr77f0.pdf)

Generating RSA keys on a Cryptographic Coprocessor Feature You can use the PKA key generate callable service to generate RSA public and private key pairs within the secure boundary of the cryptographic coprocessor. The modulus for the RSA keys may be up to 8192 bits depending on your system. The RSA private key may be retained and used within the secure boundary of the cryptographic coprocessor. The public key and the key name for the private key are stored in the ICSF public key data set (PKDS), but the value of a retained private key never appears in any form outside the cryptographic coprocessor

So this request is to enable/allow RACDCERT to use as well RSA key size of 8192 (as supported by ICSF)