build: allow specifying the component to `llvm_install_symlink`

Add an optional parameter to `llvm_install_symlink` which allows the symlink
installation to be placed into a specific component rather than the default
value.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@288600 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed