KVM: arm/arm64: vgic: Remove spurious semicolons

Detected by Coccinelle (and Will Deacon) using
scripts/coccinelle/misc/semicolon.cocci.
Reported-by: NWill Deacon <will@kernel.org>
Signed-off-by: NMarc Zyngier <maz@kernel.org>

virt/kvm/arm/vgic/vgic-init.c

@@ -510,7 +510,7 @@ int kvm_vgic_hyp_init(void)
 		break;
 	default:
 		ret = -ENODEV;
-	};
+	}
 
 	if (ret)
 		return ret;