Recent kernels broke the ability of kconfiglib to parse the Kconfig
files and offer reasons why a symbol may not be set. To address this
issue, we update to Kconfiglib2 and adjust the symbol_why script to
work with the new API.
We also tweak the kconf_check script to allow the specification of
a list of option as "non-hardware". This allows a BSP to inhibit
warnings on options that it knows are mismatched for a valid reason
(i.e. -tiny kernels using common fragments with known missing
dependencies).
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
