linux-yocto-dev: update to v4.16-rcX

(From OE-Core rev: 59285b324f6d9ed270b0bef209ef5da22a620a83)

Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-kernel/linux/linux-yocto-dev.bb

@@ -28,7 +28,7 @@ SRC_URI = "git://git.yoctoproject.org/linux-yocto-dev.git;branch=${KBRANCH};name
 SRCREV_machine ?= '${@oe.utils.conditional("PREFERRED_PROVIDER_virtual/kernel", "linux-yocto-dev", "${AUTOREV}", "29594404d7fe73cd80eaa4ee8c43dcc53970c60e", d)}'
 SRCREV_meta ?= '${@oe.utils.conditional("PREFERRED_PROVIDER_virtual/kernel", "linux-yocto-dev", "${AUTOREV}", "29594404d7fe73cd80eaa4ee8c43dcc53970c60e", d)}'
 
-LINUX_VERSION ?= "4.15-rc+"
+LINUX_VERSION ?= "4.16-rc+"
 LINUX_VERSION_EXTENSION ?= "-yoctodev-${LINUX_KERNEL_TYPE}"
 PV = "${LINUX_VERSION}+git${SRCPV}"