gcc/testsuite/gcc.dg: Fix LLP64 targets

gcc/testsuite/ChangeLog:

	* gcc.dg/builtins-69.c: Use (long )*regex pattern to
	allow long long instead of just long.
	* gcc.dg/pr80163.c: Use __INTPTR_TYPE__ for LLP64 tagets.

Signed-off-by: Jonathan Yong <10walls@gmail.com>