Fortran: fix argument passing to CONTIGUOUS,TARGET dummy [PR97592]

gcc/fortran/ChangeLog:

	PR fortran/97592
	* trans-expr.cc (gfc_conv_procedure_call): For a contiguous dummy
	with the TARGET attribute, the effective argument may still be
	contiguous even if the actual argument is not simply-contiguous.
	Allow packing to be decided at runtime by _gfortran_internal_pack.

gcc/testsuite/ChangeLog:

	PR fortran/97592
	* gfortran.dg/contiguous_15.f90: New test.

(cherry picked from commit 5060825a)