prelink breaks 6 ld tests on ppclinux

[Jack Howarth]

    I have tracked down the origin of the 6 unexpected
ld testsuite failures I was seeing on my debian ppc sid
box. It turns out that these tests fail if my box is
prelinked and don't if I unprelink. The tests in question
are...

FAIL: ELF weak func first DSO
FAIL: ELF weak func last DSO
FAIL: ELF weak data first DSO
FAIL: ELF weak data last DSO
FAIL: ELF weak data first DSO common
FAIL: ELF weak data last DSO common

I can reproduce this behavior (passes on unprelinked and
unexpected failures on prelinked) on both debian ppc sid
and YDL ppclinux (RedHat 8.0-based).
                        Jack