MIPS: KVM: Drop pr_info messages on init/exit

The information messages when the KVM module is loaded and unloaded are
a bit pointless and out of line with other architectures, so lets drop
them.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org