schemas: Add schema for IBMCFFPS

IBMCFFPS, or International Business Machines Common Form Factor Power
Supply is an IBM power supply used on a wide range of IBM systems.

The schema associates an I2C endpoint and a GPIO.  In the entity-manager
detector-configuration-reactor architecture, the daemon supporting the
IBM CFFPS is both a detector and reactor.  It probes the endpoints
described by this schema (reactor) and publish the CFFPS FRU information
(detector).

Change-Id: I9beaf1ca08701805998c5516d17e47ee88b53028
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/schemas/global.json b/schemas/global.json
index 86236b3..88db2bb 100644
--- a/schemas/global.json
+++ b/schemas/global.json
@@ -9,6 +9,9 @@
             ],
             "oneOf": [
                 {
+                    "$ref": "IBM.json#/definitions/IBMCFFPSConnector"
+                },
+                {
                     "$ref": "Intel.json#/definitions/IntelFanConnector"
                 },
                 {