[mips] Remove incorrect DebugLoc entries from prologue

This has been causing the prologue_end to be incorrectly positioned.

Patch by Vladimir Radosavljevic.

Differential Revision: http://reviews.llvm.org/D11293


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246309 91177308-0d34-0410-b5e6-96231b3b80d8
5 files changed