cpumodels : add missing sandybridge and Opteron_G4 cpu models

Signed-off-by: Alexandre Derumier <aderumier@odiso.com>

www/manager/form/CPUModelSelector.js

@@ -25,9 +25,11 @@ Ext.define('PVE.form.CPUModelSelector', {
 	    ['Penryn', 'Penryn'],
 	    ['Nehalem', 'Nehalem'],
 	    ['Westmere', 'Westmere'],
+	    ['SandyBridge', 'SandyBridge'],
 	    ['Opteron_G1', 'Opteron_G1'],
 	    ['Opteron_G2', 'Opteron_G2'],
 	    ['Opteron_G3', 'Opteron_G3'],
+	    ['Opteron_G4', 'Opteron_G4'],
 	    ['host', 'host']
 	];