Apply library name suffix to openblas if any

lapack-netlib/TESTING/EIG/CMakeLists.txt

@@ -98,7 +98,7 @@ set(ZEIGTST zchkee.f
 
 macro(add_eig_executable name)
   add_executable(${name} ${ARGN})
-  target_link_libraries(${name} openblas)
+  target_link_libraries(${name} openblas${SUFFIX64_UNDERSCORE})
 endmacro()
 
 if(BUILD_SINGLE)