Fix non-Android cross compilation with OpenCVConfig.cmake

(cherry picked from commit e8376c789d675d9d4b536066320e2981b9981b49)
fix OpenCVConfig.cmake template - missing parentheses
(cherry picked from commit 67b562d543154b29e3b5f8f9c79a03790da40712)
GPU MatchTemplate32F test epsilon increased.