cpu: Add alternative feature spellings to CPU map

We can't change feature names for compatibility reasons even if they
contain typos or other software uses different names for the same
features. By adding alternative spellings in our CPU map we at least
allow anyone to grep for them and find the correct libvirt's name.
Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

src/cpu/cpu_map.xml

@@ -97,10 +97,10 @@
     </feature>
 
     <!-- standard features, ECX -->
-    <feature name='pni'>
+    <feature name='pni'> <!-- sse3 -->
       <cpuid eax_in='0x01' ecx='0x00000001'/>
     </feature>
-    <feature name='pclmuldq'>
+    <feature name='pclmuldq'> <!-- pclmulqdq -->
       <cpuid eax_in='0x01' ecx='0x00000002'/>
     </feature>
     <feature name='dtes64'>
@@ -109,7 +109,7 @@
     <feature name='monitor'>
       <cpuid eax_in='0x01' ecx='0x00000008'/>
     </feature>
-    <feature name='ds_cpl'>
+    <feature name='ds_cpl'> <!-- ds-cpl -->
       <cpuid eax_in='0x01' ecx='0x00000010'/>
     </feature>
     <feature name='vmx'>
@@ -148,10 +148,10 @@
     <feature name='dca'>
       <cpuid eax_in='0x01' ecx='0x00040000'/>
     </feature>
-    <feature name='sse4.1'>
+    <feature name='sse4.1'> <!-- sse4-1, sse4_1 -->
       <cpuid eax_in='0x01' ecx='0x00080000'/>
     </feature>
-    <feature name='sse4.2'>
+    <feature name='sse4.2'> <!-- sse4-2, sse4_2 -->
       <cpuid eax_in='0x01' ecx='0x00100000'/>
     </feature>
     <feature name='x2apic'>
@@ -197,7 +197,7 @@
     <feature name='fsgsbase'>
       <cpuid eax_in='0x07' ebx='0x00000001'/>
     </feature>
-    <feature name='tsc_adjust'>
+    <feature name='tsc_adjust'> <!-- tsc-adjust -->
       <cpuid eax_in='0x07' ebx='0x00000002'/>
     </feature>
     <feature name='bmi1'>
@@ -281,13 +281,13 @@
     <feature name='syscall'>
       <cpuid eax_in='0x80000001' edx='0x00000800'/>
     </feature>
-    <feature name='nx'>
+    <feature name='nx'> <!-- xd -->
       <cpuid eax_in='0x80000001' edx='0x00100000'/>
     </feature>
     <feature name='mmxext'>
       <cpuid eax_in='0x80000001' edx='0x00400000'/>
     </feature>
-    <feature name='fxsr_opt'>
+    <feature name='fxsr_opt'> <!-- ffxsr, fxsr-opt -->
       <cpuid eax_in='0x80000001' edx='0x02000000'/>
     </feature>
     <feature name='pdpe1gb'>
@@ -296,7 +296,7 @@
     <feature name='rdtscp'>
       <cpuid eax_in='0x80000001' edx='0x08000000'/>
     </feature>
-    <feature name='lm'>
+    <feature name='lm'> <!-- i64 -->
       <cpuid eax_in='0x80000001' edx='0x20000000'/>
     </feature>
     <feature name='3dnowext'>
@@ -307,10 +307,10 @@
     </feature>
 
     <!-- extended features, ECX -->
-    <feature name='lahf_lm'>
+    <feature name='lahf_lm'> <!-- lahf-lm -->
       <cpuid eax_in='0x80000001' ecx='0x00000001'/>
     </feature>
-    <feature name='cmp_legacy'>
+    <feature name='cmp_legacy'> <!-- cmp-legacy -->
       <cpuid eax_in='0x80000001' ecx='0x00000002'/>
     </feature>
     <feature name='svm'>
@@ -361,7 +361,7 @@
     <feature name='cvt16'>
       <cpuid eax_in='0x80000001' ecx='0x00040000'/>
     </feature>
-    <feature name='nodeid_msr'>
+    <feature name='nodeid_msr'> <!-- nodeid-msr -->
       <cpuid eax_in='0x80000001' ecx='0x00080000'/>
     </feature>
     <feature name='tbm'>
@@ -370,10 +370,10 @@
     <feature name='topoext'>
       <cpuid eax_in='0x80000001' ecx='0x00400000'/>
     </feature>
-    <feature name='perfctr_core'>
+    <feature name='perfctr_core'> <!-- perfctr-core -->
       <cpuid eax_in='0x80000001' ecx='0x00800000'/>
     </feature>
-    <feature name='perfctr_nb'>
+    <feature name='perfctr_nb'> <!-- perfctr-nb -->
       <cpuid eax_in='0x80000001' ecx='0x01000000'/>
     </feature>