[Mips] Fix enumeral and non-enumeral type in conditional expression warning
[Mips] Fix enumeral and non-enumeral type in conditional expression warning

No functional changes.

git-svn-id: f6089bf0e6284f307027cef4f64114ee9ebb0424@227297 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/lld,llvm-mirror/lld