vect/testsuite: Fix vect-simd-clone-1[02].c when dg-do default is compile [PR113899]

The vect testsuite will chose the dg-do default based on if it knows the
running target does not support running with the vector extensions enabled
(for easy of testing). The problem is when it is decided the default is compile
instead of run, dg-additional-sources does not work. So the fix is to set
dg-do on these two testcases to run explicitly.

Tested on x86_64 with a hack to check_vect_support_and_set_flags to set the dg-default
to compile.

gcc/testsuite/ChangeLog:

	PR testsuite/113899
	* gcc.dg/vect/vect-simd-clone-10.c: Add `dg-do run`
	* gcc.dg/vect/vect-simd-clone-12.c: Likewise.

Signed-off-by: Andrew Pinski <quic_apinski@quicinc.com>