sim,kvm,arm: fix typos

Change-Id: Ifc65d42eebfd109c1c622c82c3c3b3e523819e85
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>

src/arch/arm/kvm/gic.hh

@@ -65,7 +65,7 @@ class KvmKernelGicV2
      * @param vm KVM VM representing this system
      * @param cpu_addr GIC CPU interface base address
      * @param dist_addr GIC distributor base address
-     * @param it_liens Number of interrupt lines to support
+     * @param it_lines Number of interrupt lines to support
      */
     KvmKernelGicV2(KvmVM &vm, Addr cpu_addr, Addr dist_addr,
                    unsigned it_lines);