linux-ombc: Fixes for i2c bus & device drivers

We have an update for the kernel, containing fixes for the i2c subsystem.
This includes a defconfig update.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
diff --git a/common/recipes-kernel/linux/linux-obmc_4.2.bb b/common/recipes-kernel/linux/linux-obmc_4.2.bb
index 3284fda..1d8106d 100644
--- a/common/recipes-kernel/linux/linux-obmc_4.2.bb
+++ b/common/recipes-kernel/linux/linux-obmc_4.2.bb
@@ -10,7 +10,7 @@
 LINUX_VERSION ?= "4.2"
 LINUX_VERSION_EXTENSION ?= "-${SRCREV}"
 
-SRCREV="openbmc-20151102-1"
+SRCREV="openbmc-20151104-1"
 
 PV = "${LINUX_VERSION}+git${SRCPV}"