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/meson.build b/meson.build
index 2f97202..12daa89 100644
--- a/meson.build
+++ b/meson.build
@@ -121,6 +121,7 @@
     'global.json',
     'legacy.json',
     'openbmc-dbus.json',
+    'IBM.json',
     'Pid.json',
     'Pid.Zone.json',
     'Stepwise.json',