confirm lvcreate when ext4 signature exists

In some case, when pervious ext4 signature exists, lvcreate fails
with return code 5.
Add -y -Wy -Zy parameters for lvcreate to automatically wipe the
existing ext4 signature.

TCs:
    1. controllers successfully complete upgrade.

Story: 2009303
Task: 46252

Change-Id: I6759e25e42929ab3b1c4eb01fcbaf2be411dd8ca
Signed-off-by: Bin Qian <bin.qian@windriver.com>

controllerconfig/controllerconfig/controllerconfig/upgrades/controller.py

@@ -172,13 +172,17 @@ def create_temp_filesystem(vgname, lvname, mountpoint, size):
     devnull = open(os.devnull, 'w')
 
     try:
+        # lvcreate -n <lvname> --size <size> <vgname> -y -Wy -Zy
         subprocess.check_call(
             ["lvcreate",
              "--size",
              size,
              "-n",
              lvname,
-             vgname],
+             vgname,
+             "-y",
+             "-Wy",
+             "-Zy"],
             close_fds=True,
             stdout=devnull)
     except subprocess.CalledProcessError: