Simplify lit test configs for LSan and UBSan by using a generic config

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@201553 91177308-0d34-0410-b5e6-96231b3b80d8
[tsan] one more lit test for deadlock detector; more to come

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@201554 91177308-0d34-0410-b5e6-96231b3b80d8
[CMake] Add top-level target for each compiler-rt library, and add 'compiler-rt' target encompassing them all.

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@201556 91177308-0d34-0410-b5e6-96231b3b80d8