[mips] Prevent PIC to be set to level 2

Description

[mips] Prevent PIC to be set to level 2

MIPS does not use PIC level 2 for historical reasons,
even with -fPIC/-mxgot/multigot options. This patch
prevents PIC to be set to level 2 for MIPS.

Differential Revision: https://reviews.llvm.org/D44381

Details

Committed
abeserminjiMon, Apr 16, 3:21 AM
Differential Revision
D44381: [mips] Prevent PIC to be set to level 2
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