warnings clean up: update import in LOBPCGEigenvalueSolver
warnings clean up: update import in LOBPCGEigenvalueSolver

sfepy/sfepy,vlukes/sfepy,sfepy/sfepy,BubuLK/sfepy,BubuLK/sfepy,vlukes/sfepy,vlukes/sfepy,rc/sfepy,rc/sfepy,BubuLK/sfepy,rc/sfepy,sfepy/sfepy