gold RELRO section detection on Sparc

[David Miller]

From: David Miller <davem@davemloft.net>
Date: Sun, 08 Apr 2012 22:51:11 -0400 (EDT)

> Nevermind, I see what's going on here, the ORDER_* and
> Layout::default_section_order() bits that are emulating the elf.sc
> linker script doesn't handle cases like Sparc that need the PLT in the
> data section after the relro bits.
> 
> Ian, any suggestions?

Ok, using ORDER_NON_RELRO_FIRST for sparc's PLT section
seems to do the trick.  I hope this is the intended
usage.