[CMake] Fix: add_host_subdirectory source/Host/macosx
[CMake] Fix: add_host_subdirectory source/Host/macosx

Summary: Typo introduced with https://reviews.llvm.org/D47929

Reviewers: teemperor

Subscribers: mgorny, friss, lldb-commits

Differential Revision: https://reviews.llvm.org/D54335

git-svn-id: 4c4cc70b1ef44ba2b7963015e681894188cea27e@346667 91177308-0d34-0410-b5e6-96231b3b80d8

apple/swift-lldb,apple/swift-lldb,apple/swift-lldb,llvm-mirror/lldb,apple/swift-lldb,llvm-mirror/lldb,apple/swift-lldb,llvm-mirror/lldb,apple/swift-lldb,llvm-mirror/lldb,llvm-mirror/lldb