linux-wrs: move config fragment to the correct location

Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>

diff --git a/meta/recipes-kernel/linux/x86-wrs.cfg b/meta/recipes-kernel/linux/linux-wrs/x86-wrs.cfg
similarity index 100%
rename from meta/recipes-kernel/linux/x86-wrs.cfg
rename to meta/recipes-kernel/linux/linux-wrs/x86-wrs.cfg