cpuid: Ignore CPUID[0x40000000].EAX on RHEL machine-types, too

Signed-off-by: NEduardo Habkost <ehabkost@redhat.com>

qemu/tests/cfg/qemu_cpu.cfg

@@ -308,7 +308,7 @@
                     #KNOWN BUG: QEMU 2.1.0 broke the ABI by changing
                     # CPUID[0x40000000].EAX without any compat code
                     kvm:
-                        pc_1_0, pc_1_1, pc_1_2, pc_1_3, pc_q35_1_4, pc_i440fx_1_4, pc_q35_1_5, pc_i440fx_1_5:
+                        pc_1_0, pc_1_1, pc_1_2, pc_1_3, pc_q35_1_4, pc_i440fx_1_4, pc_q35_1_5, pc_i440fx_1_5, machine.rhel:
                             # Ignore only bits 30 and 0. that means 0x400000001 and 0 are equivalent, but
                             # other bits can't change
                             ignore_cpuid_leaves += " 0x40000000,0,eax,0 0x40000000,0,eax,30"