poky-tiny: bump to v4.14

Updating poky-tiny to the latest LTS kernel as the default version.

(From meta-yocto rev: 2623111ae35218e596eac44509b1d12291840d44)

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

meta-poky/conf/distro/poky-tiny.conf

@@ -38,7 +38,7 @@ TCLIBC = "musl"
 # Distro config is evaluated after the machine config, so we have to explicitly
 # set the kernel provider to override a machine config.
 PREFERRED_PROVIDER_virtual/kernel = "linux-yocto-tiny"
-PREFERRED_VERSION_linux-yocto-tiny ?= "4.12%"
+PREFERRED_VERSION_linux-yocto-tiny ?= "4.14%"
 
 # We can use packagegroup-core-boot, but in the future we may need a new packagegroup-core-tiny
 #POKY_DEFAULT_EXTRA_RDEPENDS += "packagegroup-core-boot"