Backport patch supporting "big" kernel symbols. This is needed for
powerpc arch that seems to suffer from this problem when
CONFIG_ALL_KMODS is selected and fail to compile with the error:
Inconsistent kallsyms data
Try make KALLSYMS_EXTRA_PASS=1 as a workaround
Backport this patch to handle these corner case.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
