kernel: Update flash layout for built in initramfs

This adds a commit from Rick that merges the kenrel and initramfs
partitions. OpenBMC has switched to using FIT by default, and by
building the kernel and initrd into the FIT image we get verification of
both of these images at boot time.

This change makes it hard to switch between the old and the new layout,
as the kernel (via the device tree)is hardcoded to use the new flash
layout.

This also pulls in the fsi-master device tree for Witherspoon, but it is
not enabled so there is no functional change.

Change-Id: Ia75569faaf9765b2ea79c4df44a3b7e2c357b0bd
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 b6a02d3..717eef7 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="6107661a7855efc07dfbe8f2b8847dbf2326e653"
+SRCREV="5f605673ef9354d7653ab0c8eef80007a7fbb8b1"
 
 require linux-obmc.inc