Fix PR c++/65186

gcc/cp/ChangeLog: 
	PR c++/65186
	* pt.c (invalid_nontype_parm_type_p): Accept a bound template
	template parm type under C++11 and later.

gcc/testsuite/ChangeLog:

	PR c++/65186
	* g++.dg/template/pr65186.C: New test.

From-SVN: r225749