Fix cmake warning (#52788)

Fix cmake warning (#52788)

Fix this:
```
 CMake Warning (dev) in crosscomponents.cmake:
    A logical block opening on the line

      C:/gh/runtime4/src/coreclr/crosscomponents.cmake:24 (if)

    closes on the line

      C:/gh/runtime4/src/coreclr/crosscomponents.cmake:36 (endif)

    with mis-matching arguments.
  Call Stack (most recent call first):
    CMakeLists.txt:254 (include)
  This warning is for project developers.  Use -Wno-dev to suppress it.
```