pmbootstrap kconfig edit: support $builddir and $srcdir/build
Created by: ollieparanoid
The linux APKBUILDs write the kernel config either to $builddir
(default from the template) or $srcdir/build
(legacy, and I reverted to that in #1556, which was not the proper fix for this regression).
With this commit, pmbootstrap kconfig edit
is able to edit both versions, and prints a note when the APKBUILD is still using the old style.
Fixes #1551 (closed).
[x] Merge on GitHub (see https://postmarketos.org/merge)