crypto: ccp: Define SEV userspace ioctl and command id

crypto: ccp: Define SEV userspace ioctl and command id

Add a include file which defines the ioctl and command id used for
issuing SEV platform management specific commands.

Cc: Paolo Bonzini <[email protected]>
Cc: "Radim Krčmář" <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Herbert Xu <[email protected]>
Cc: Gary Hook <[email protected]>
Cc: Tom Lendacky <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Improvements-by: Borislav Petkov <[email protected]>
Signed-off-by: Brijesh Singh <[email protected]>
Reviewed-by: Borislav Petkov <[email protected]>
Acked-by: Gary R Hook <[email protected]>