Not all SOC follow the same programming to clear crashlog
data. So make common implementation of cpu_cl_clear_data()
weak.
BUG=b:262501347
TEST=Able to build google/rex.
Change-Id: Ic2b4631d57703abff0ab1880fb272ef67bb1b8e9
Signed-off-by: Pratikkumar Prajapati <pratikkumar.v.prajapati@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/77237
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>