[Patch] ld testsuite: Fix some FAILs caused by missing -fpic.

[David Daney]

Since the beginning of time (or at least CVS), there has been special 
code in the ld testsuite to  omit -fpic from the flags used for building 
shared libraries on MIPS.  This worked for very old versions of GCC 
where the generated code was always PIC by default.

Since GCC-4.3, -fpic has been mandatory for creation of shared objects, 
and the testsuite's lack of this flag has caused many test cases to fail.

I propose that we remove this special handling and pass -fpic, just as 
we do for almost all other targets.  Doing this fixes about twenty FAILs.

Tested on mips64-linux-gnu and x86_64-linux-gnu with no regressions.

OK to commit?

2011-12-05  David Daney  <david.daney@cavium.com>

	* ld-elfvers/vers.exp (picflag): Remove special handling for mips*-*-*.
	(pic): Set to "yes" for mips*-*-linux*.
	* ld-elfvsb/elfvsb.exp: Don't test non-PIC shared libraried on
	mips*-*-linux*.
	( picflag): Remove special handling for mips*-*-*.
	* ld-elfweak/elfweak.exp (picflag): Remove special handling
	for mips*-*-*.
	* ld-shared/shared.exp (picflag): Same.
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