Set correct OpenSC PKCS11 module path
https://github.com/open-eid/cmake/pull/34

Index: cmake/modules/FindPKCS11.cmake
--- cmake/modules/FindPKCS11.cmake.orig
+++ cmake/modules/FindPKCS11.cmake
@@ -9,7 +9,7 @@ if(APPLE)
 elseif(WIN32)
 	set(PKCS11_MODULE opensc-pkcs11.dll)
 else()
-	set(PKCS11_MODULE opensc-pkcs11.so)
+	set(PKCS11_MODULE /usr/local/lib/pkcs11/opensc-pkcs11.so)
 endif()
 
 include(FindPackageHandleStandardArgs)
