Add nova-specific date for spec freeze

Nova is going to have spec freeze on the p-1 milestone.

Nova will not be doing a non-priority feature freeze in
Pike and will follow the same feature freeze date as the
rest of the community.

Change-Id: Ic1ca3dbf797fa966123a7998b02d1ec39156a8ec

doc/source/pike/schedule.rst

@@ -311,3 +311,13 @@ Manila Feature Proposal Freeze
 
 All new Manila features must be proposed and substantially complete, with unit
 tests by 10 July 2017 (23:59 UTC).
+
+Nova
+----
+
+.. _p-nova-spec-freeze:
+
+Nova Spec Freeze
+^^^^^^^^^^^^^^^^
+
+All Nova specs must be approved by Thursday April 13th, 2017.

doc/source/pike/schedule.yaml

@@ -36,6 +36,7 @@ cycle:
   project-specific:
   - p-glance-spec-freeze
   - p-manila-spec-freeze
+  - p-nova-spec-freeze
 - end: '2017-04-21'
   name: R-19
   start: '2017-04-17'