openpower: use meta-phosphor provided overrides

OpenBMC is moving away from processor arch specific layers to supporting
multiple arches in a single layer (meta-phosphor).  To that end, a
handful of machine includes that set some machine overrides were added
to meta-phosphor for IBM POWER processors.

Include these new includes from our layer so that any existing
meta-openpower users pick up the new overrides.  This provides a path to
migrating meta-openpower content upstream to meta-phosphor.

(From meta-openpower rev: e7e4e65e2d76887d096022fa782901b45a795ee6)

Change-Id: Ic176d3247523ae8f1de143301bf2a932e427fdcc
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
diff --git a/meta-openpower/conf/machine/include/p9.inc b/meta-openpower/conf/machine/include/p9.inc
index 4c30aac..2da9fd1 100644
--- a/meta-openpower/conf/machine/include/p9.inc
+++ b/meta-openpower/conf/machine/include/p9.inc
@@ -1,2 +1,3 @@
+include conf/machine/include/ibm-power9-cpu.inc
 OBMC_MACHINE_FEATURES += 'op-fsi p9-cfam-override'
 PREFERRED_PROVIDER_virtual/obmc-host-ctl = "p9-host-start"