A few vm-test updates

- use Ubuntu 18.04 for i386 image
   - python3 for centos and docker
   - install locales for ubuntu
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Merge remote-tracking branch 'remotes/stsquad/tags/pull-rc3-testing-261119-1' into staging

A few vm-test updates

  - use Ubuntu 18.04 for i386 image
  - python3 for centos and docker
  - install locales for ubuntu

# gpg: Signature made Tue 26 Nov 2019 11:31:26 GMT
# gpg:                using RSA key 6685AE99E75167BCAFC8DF35FBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [full]
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8  DF35 FBD0 DB09 5A9E 2A44

* remotes/stsquad/tags/pull-rc3-testing-261119-1:
  tests/vm/ubuntu: update i386 image to 18.04
  tests/vm/ubuntu: include language pack to silence locale warnings
  tests/vm/centos: fix centos build target

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

tests/vm/centos

@@ -73,7 +73,7 @@ class CentosVM(basevm.BaseVM):
         self.wait_ssh()
         self.ssh_root_check("touch /etc/cloud/cloud-init.disabled")
         self.ssh_root_check("yum update -y")
-        self.ssh_root_check("yum install -y docker make git")
+        self.ssh_root_check("yum install -y docker make git python3")
         self.ssh_root_check("systemctl enable docker")
         self.ssh_root("poweroff")
         self.wait()

tests/vm/ubuntu.i386

@@ -66,8 +66,8 @@ class UbuntuX86VM(basevm.BaseVM):
 
     def build_image(self, img):
         cimg = self._download_with_cache(
-            "https://cloud-images.ubuntu.com/releases/16.04/release-20190605/ubuntu-16.04-server-cloudimg-i386-disk1.img",
-            sha256sum="e30091144c73483822b7c27193e9d47346dd1064229da577c3fedcf943f7cfcc")
+            "https://cloud-images.ubuntu.com/releases/bionic/release-20191114/ubuntu-18.04-server-cloudimg-i386.img",
+            sha256sum="28969840626d1ea80bb249c08eef1a4533e8904aa51a327b40f37ac4b4ff04ef")
         img_tmp = img + ".tmp"
         subprocess.check_call(["cp", "-f", cimg, img_tmp])
         subprocess.check_call(["qemu-img", "resize", img_tmp, "50G"])
@@ -84,7 +84,7 @@ class UbuntuX86VM(basevm.BaseVM):
         self.ssh_root_check("sed -ie s/^#\ deb-src/deb-src/g /etc/apt/sources.list")
         self.ssh_root_check("apt-get update")
         self.ssh_root_check("apt-get build-dep -y qemu")
-        self.ssh_root_check("apt-get install -y libfdt-dev flex bison")
+        self.ssh_root_check("apt-get install -y libfdt-dev flex bison language-pack-en")
         self.ssh_root("poweroff")
         self.wait()
         os.rename(img_tmp, img)