XAA makes Xorg stable

package/xorg-server/files/xorg.conf.lemote-yeelong

@@ -27,7 +27,7 @@ Section "Device"
        VendorName  "Silicon Motion, Inc."
        BoardName   "SM712 LynxEM+"
        BusID       "PCI:0:8:0"
-       Option      "AccelMethod"       "EXA"
+       Option      "AccelMethod"       "XAA"
        Option      "pci_burst"         "true"
        Option      "HWCursor"          "false"
        Option      "SWCursor"          "true"