[sollve_vv] -lopenmptarget -> -lomptarget.

Fix the wrong naming of the library in the suggested offloading flags.
diff --git a/External/sollve_vv/CMakeLists.txt b/External/sollve_vv/CMakeLists.txt
index ba60e3d..5bb4b31 100644
--- a/External/sollve_vv/CMakeLists.txt
+++ b/External/sollve_vv/CMakeLists.txt
@@ -4,7 +4,7 @@
 include(External)
 
 set(TEST_SUITE_SOLLVEVV_OFFLOADING_CFLAGS "-fopenmp-targets=nvptx64-nvidia-cuda;-Xopenmp-target;-march=sm_70" CACHE STRING "Compiler arguments for OpenMP offloading")
-set(TEST_SUITE_SOLLVEVV_OFFLOADING_LDFLAGS "-fopenmp-targets=nvptx64-nvidia-cuda;-Xopenmp-target;-march=sm_70;-lopenmptarget" CACHE STRING "Linker arguments for OpenMP offloading")
+set(TEST_SUITE_SOLLVEVV_OFFLOADING_LDFLAGS "-fopenmp-targets=nvptx64-nvidia-cuda;-Xopenmp-target;-march=sm_70;-lomptarget" CACHE STRING "Linker arguments for OpenMP offloading")
 
 function (add_sollvevv LANG)
   set(_includedir "${TEST_SUITE_SOLLVEVV_ROOT}/ompvv" )