Use OpenFSI backend for all FSI operations

We perform two changes that must be done in sync:

 - Tell pdbg to use OpenFSI backend in boot scripts.

 - Bump the kernel to enable the FSI kernel driver.

Following this change the host CPUs are IPL'd through the kernel driver.

Change-Id: Ia28d2c854c8856c12c21e2230501ab7a9bc2a3b7
Signed-off-by: Matt Spinler <spinler@us.ibm.com>
Signed-off-by: Joel Stanley <joel@jms.id.au>
diff --git a/common/recipes-kernel/linux/linux-obmc_4.7.bb b/common/recipes-kernel/linux/linux-obmc_4.7.bb
index c1530cd..d5614c1 100644
--- a/common/recipes-kernel/linux/linux-obmc_4.7.bb
+++ b/common/recipes-kernel/linux/linux-obmc_4.7.bb
@@ -1,6 +1,6 @@
 KBRANCH ?= "dev-4.7"
 LINUX_VERSION ?= "4.7"
 
-SRCREV="cd72aa35e473996f548d8a1612d2e8cf7006f44e"
+SRCREV="39eb5a44bfd49fe530f6b68c4d99ab2d8d391be0"
 
 require linux-obmc.inc