stdlib: avoid relocation

valloc uses memalign

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
relinfo.pl: silence warning

$* is no longer supported at extra/scripts/relinfo.pl line 2.

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
relinfo.pl: use correct interpreter

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
add UCLIBC_SUSV2_LEGACY to hide valloc

valloc was marked as LEGACY in SUSv2, removed from SUSv3 and later.
TODO: Remove this (point people to memalign and it's successors?).

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
buildsys: fix realclean

For anything but (toplevel) clean, CLEAN_%, we need .config
Otherwise realclean would leave stuff behind that was not intended to
survive.

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>