Enable Flake8 300 Series Errors

Flake8 currently ignores the following errors:
E302: expected 2 blank lines[COMMA] found 1
E303: too many blank lines
E305: expected 2 blank lines after class or function definition, found 1

Change-Id: Idfb00e530967f1a345bc2e263ad77597f83cc5d3
Story: 2004515
Task: 30076
Signed-off-by: Eric Barrett <eric.barrett@windriver.com>

collectd-extensions/src/cpu.py

@@ -45,6 +45,7 @@ class CPU:
 
         collectd.error("%s %s" % (PLUGIN, err_str))
 
+
 # Instantiate the class
 c = CPU()
 

collectd-extensions/src/mtce_notifier.py

@@ -388,6 +388,7 @@ def notifier_func(nObject):
 
     return 0
 
+
 collectd.register_config(config_func)
 collectd.register_init(init_func)
 collectd.register_notification(notifier_func)

collectd-extensions/src/ntpq.py

@@ -97,6 +97,7 @@ class NtpqObject:
     repair = "Monitor and if condition persists, "
     repair += "contact next level of support."
 
+
 # This plugin's class object - persists over read calls
 obj = NtpqObject()
 

vm-topology/vm-topology/vm_topology/exec/vm_topology.py

@@ -489,6 +489,7 @@ def list_to_range(L=None):
     return ",".join(
         "-".join(map(str, (g[0][1], g[-1][1])[:len(g)])) for g in G)
 
+
 def range_to_list(csv_range=None):
     """ Convert a string of comma separate ranges into an expanded list of
         integers.  E.g., '1-3,8-9,15' is converted to [1,2,3,8,9,15]
@@ -1470,7 +1471,6 @@ def get_info_and_display(show=None):
         'error'
     ]
 
-
     # Get keystone credentials from nova.conf
     auth = keystone.load_auth_from_conf_options(CONF, AUTHTOKEN_GROUP)
     keystone_session = session.Session(auth=auth)