crypto: ccp - check whether PSP supports SEV or TEE before initialization

Read PSP feature register to check for TEE (Trusted Execution Environment)
support.

If neither SEV nor TEE is supported by PSP, then skip PSP initialization.

Cc: Tom Lendacky <[email protected]>
Cc: Jens Wiklander <[email protected]>
Cc: Ard Biesheuvel <[email protected]>
Co-developed-by: Devaraj Rangasamy <[email protected]>
Signed-off-by: Devaraj Rangasamy <[email protected]>
Signed-off-by: Rijo Thomas <[email protected]>
Acked-by: Gary R Hook <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>

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