bitbake.conf: change libexecdir to ${libdir}/${BPN}
In order to be more compliant with the Filesystem Hierarchs
Standard (FHS), this change removes the /usr/libexec default
in favor of ${libdir}/${BPN} (which is typically /usr/lib).
http://www.pathname.com/fhs/pub/fhs-2.3.html
This also address the native and STAGING variations
[YOCTO #2915]
(From OE-Core rev:
68c31b095a1cb20bd297df596024fc568614f5e8)
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>