[mips] For indirect calls we don't need $gp to point to .got.  Mips linker
doesn't generate lazy binding stub for a function whose address is taken in
the program.

Differential Revision: http://reviews.llvm.org/D5067


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218744 91177308-0d34-0410-b5e6-96231b3b80d8
[mips] Fix disassembly of [ls][wd]c[23], cache, and pref                          
                                                                                  
Fixes PR21015, and PR20993.                                                       
                                                                                  
Patch by Jun Koi



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218745 91177308-0d34-0410-b5e6-96231b3b80d8