[CMake] Add dependency to DriverSupport for XCBuildSupport

This was added to the `Package.swift` in swiftlang#7258 but skipped in the CMake
because swiftlang#7358 excluded XCBuildSupport as a CMake target. But that's
reverted here, so we need to add the dependency in.

Author: bnbarham

Sources/XCBuildSupport/CMakeLists.txt

@@ -15,6 +15,7 @@ add_library(XCBuildSupport STATIC
   XcodeBuildSystem.swift)
 target_link_libraries(XCBuildSupport PUBLIC
   Build
+  DriverSupport
   TSCBasic
   TSCUtility
   PackageGraph