Update Buildroot 2019.02.8

buildroot/support/testing/infra/emulator.py

@@ -38,7 +38,8 @@ class Emulator(object):
 
         qemu_cmd = ["qemu-system-{}".format(qemu_arch),
                     "-serial", "stdio",
-                    "-display", "none"]
+                    "-display", "none",
+                    "-m", "256"]
 
         if options:
             qemu_cmd += options
@@ -60,8 +61,12 @@ class Emulator(object):
                     qemu_cmd += ["-M", "vexpress-a9"]
                 elif arch == "armv5":
                     kernel = infra.download(self.downloaddir,
-                                            "kernel-versatile")
+                                            "kernel-versatile-4.19")
+                    dtb = infra.download(self.downloaddir,
+                                         "versatile-pb-4.19.dtb")
+                    qemu_cmd += ["-dtb", dtb]
                     qemu_cmd += ["-M", "versatilepb"]
+                    qemu_cmd += ["-device", "virtio-rng-pci"]
 
             qemu_cmd += ["-kernel", kernel]