lib/version: Don't link to drivers_board

The needed version specific things come from px4 layer. Since version
is used both in kernel an user sides in protected build, it can't directly
link to drivers_board

Signed-off-by: Jukka Laitinen <jukkax@ssrc.tii.ae>

src/lib/version/CMakeLists.txt

@@ -85,5 +85,4 @@ target_compile_definitions(version
 	)
 
 target_link_libraries(version PRIVATE git_ver)
-target_link_libraries(version PRIVATE drivers_board)
 add_dependencies(version prebuild_targets)