Updated cross Win-x-ARM Linux toolchain cmake cache file in according of
the following changes: https://reviews.llvm.org/D100869
Stop using use c++ subdirectory for libc++ library
set(LIBCXX_ENABLE_SHARED OFF CACHE BOOL "")
set(LIBCXX_CXX_ABI "libcxxabi" CACHE STRING "")
set(LIBCXX_CXX_ABI_INCLUDE_PATHS "${LLVM_PROJECT_DIR}/libcxxabi/include" CACHE PATH "")
-set(LIBCXX_CXX_ABI_LIBRARY_PATH "${CMAKE_BINARY_DIR}/lib/${LIBCXX_TARGET_TRIPLE}/c++" CACHE PATH "")
+set(LIBCXX_CXX_ABI_LIBRARY_PATH "${CMAKE_BINARY_DIR}/lib/${LIBCXX_TARGET_TRIPLE}" CACHE PATH "")
set(LIBCXX_ENABLE_NEW_DELETE_DEFINITIONS ON CACHE BOOL "")
# Set up RPATH for the target runtime/builtin libraries.