cpu: Add support for MPX and AVX512 Intel features

Corresponding QEMU commits:
    MPX     79e9ebebbf2a00c46fcedb6dc7dd5e12bbd30216
    AVX512  9aecd6f8aef653cea58932f06a2740299dbe5fd3
Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

src/cpu/cpu_map.xml

@@ -317,6 +317,12 @@
     <feature name='rtm'>
       <cpuid function='0x00000007' ebx='0x00000800'/>
     </feature>
+    <feature name='mpx'>
+      <cpuid function='0x00000007' ebx='0x00004000'/>
+    </feature>
+    <feature name='avx512f'> <!-- AVX-512 Foundation -->
+      <cpuid function='0x00000007' ebx='0x00010000'/>
+    </feature>
     <feature name='rdseed'>
       <cpuid function='0x00000007' ebx='0x00040000'/>
     </feature>
@@ -326,6 +332,15 @@
     <feature name='smap'>
       <cpuid function='0x00000007' ebx='0x00100000'/>
     </feature>
+    <feature name='avx512pf'> <!-- AVX-512 Prefetch -->
+      <cpuid function='0x00000007' ebx='0x04000000'/>
+    </feature>
+    <feature name='avx512er'> <!-- AVX-512 Exponential and Reciprocal -->
+      <cpuid function='0x00000007' ebx='0x08000000'/>
+    </feature>
+    <feature name='avx512cd'> <!-- AVX-512 Conflict Detection -->
+      <cpuid function='0x00000007' ebx='0x10000000'/>
+    </feature>
 
     <!-- Advanced Power Management edx features -->
     <feature name='invtsc' migratable='no'>