meta-phosphor/u-boot: Move to newer version

Fixes from Milton for u-boot leaving ethernet device running after
loading linux:

      net: aspeednic: Create aspeed_write_hwaddr from set_mac_address
      net: aspeednic: Do not start hardware in initialize
      net: aspeednic: Remove extra spaces before assignments
      net: aspeednic: Do not fill in a random MAC address
      net: Implement random ethaddr fallback in eth.c

Backports from upstream from me to support building under modern GCC
versions:

      common: main.c: make show_boot_progress __weak
      ARM:asm:io.h use static inline
      arm: board: use __weak
      net: Implement random ethaddr fallback in eth.c
      compiler*.h: sync include/linux/compiler*.h with Linux 4.5-rc6

Signeo-off-by: Joel Stanley <joel@jms.id.au>
diff --git a/common/recipes-bsp/u-boot/u-boot_2013.07.bb b/common/recipes-bsp/u-boot/u-boot_2013.07.bb
index 6070fbf..f2434ad 100644
--- a/common/recipes-bsp/u-boot/u-boot_2013.07.bb
+++ b/common/recipes-bsp/u-boot/u-boot_2013.07.bb
@@ -10,9 +10,8 @@
 LIC_FILES_CHKSUM = "file://COPYING;md5=1707d6db1d42237583f50183a5651ecb \
                     file://README;beginline=1;endline=22;md5=78b195c11cb6ef63e6985140db7d7bab"
 
-# This revision corresponds to the tag "v2013.07"
 # We use the revision in order to avoid having to fetch it from the repo during parse
-SRCREV = "4b44678c11ac82c7c797bb115e276181752ad54d"
+SRCREV = "44f1262bdf39ad93032d39f17a298165372be82e"
 
 PV = "v2013.07+git${SRCPV}"