build: cmake cross-compilation fixes

Type: fix
Change-Id: I40337c208375b74b4dc3c35102c5e66a6e4568e8
Signed-off-by: Damjan Marion <damarion@cisco.com>

src/cmake/CMakeLists.txt

@@ -21,7 +21,7 @@ install(
   VPPConfig.cmake
 
   DESTINATION
-  lib/cmake/vpp
+  ${VPP_LIBRARY_DIR}/cmake/vpp
 
   COMPONENT vpp-dev
 )

src/pkg/CMakeLists.txt

@@ -11,6 +11,10 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+if(CMAKE_CROSSCOMPILING)
+  return()
+endif()
+
 get_cmake_property(VPP_COMPONENTS COMPONENTS)
 string(REPLACE ";" " " VPP_COMPONENTS "${VPP_COMPONENTS}")