kern-tools: fix non-local patch/config location

kern-tools: fix non-local patch/config location

A regression was introduced when implementing the ability to restrict
configuration values via include directives. Only patch and config files that
were local to a feature directory could be found. While this doesn't impact
most users of the tools, it is an issue that needs to be fixed.

Additionally, the regex that detected flags passed to includes was not
specific enough, and unfortunately named feature files would match. This
resulted in features like standard-nocfg.scc inhibiting all configuration
items, even base configs.

This change also bumps the linux-yocto 3.4 and 3.8 PR values to ensure
that kernels will be rebuilt once this change is active.

(From OE-Core rev: ddce9f375c626ef2c86f48612b3d7a24e3111b0b)

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