KVM: PPC: Fix refactoring goof in kvmppc_e500mc_init()

Fix a build error due to a mixup during a recent refactoring.  The error
was reported during code review, but the fixed up patch didn't make it
into the final commit.

Fixes: 474856bad921 ("KVM: PPC: Move processor compatibility check to module init")
Link: https://lore.kernel.org/all/87cz93snqc.fsf@mpe.ellerman.id.au


Cc: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20230119182158.4026656-1-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>