Platform: Fix SPRTL static library name for m2351

The static library name of SPRTL has changed to libtfm_sprt.a,
fix the pattern error for m2351 platform.

Also involve other updates from the common scatter file:
- Remove unused object pattern.
- Add stack seal section for library model.

Change-Id: I5a98b4b063058f44a8502f393a00378b18cd9b57
Signed-off-by: Mingyang Sun <mingyang.sun@arm.com>
1 file changed