crypto: ccp - Fix a case where SNP_SHUTDOWN is missed

crypto: ccp - Fix a case where SNP_SHUTDOWN is missed

If page reclaim fails in sev_ioctl_do_snp_platform_status() and SNP was
moved from UNINIT to INIT for the function, SNP is not moved back to
UNINIT state. Additionally, SNP is not required to be initialized in order
to execute the SNP_PLATFORM_STATUS command, so don't attempt to move to
INIT state and let SNP_PLATFORM_STATUS report the status as is.

Fixes: ceac7fb89e8d ("crypto: ccp - Ensure implicit SEV/SNP init and shutdown in ioctls")
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Reviewed-by: Tycho Andersen (AMD) <tycho@kernel.org>
Reviewed-by: Alexey Kardashevskiy <aik@amd.com>
Signed-off-by: Tycho Andersen (AMD) <tycho@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>