s390/sclp: get rid of sclp_get_mtid() and sclp_get_mtid_max()

As all relevant sclp data is now directly accessible, let's move the
logic of these two functions to the single caller.

Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

diff --cc arch/s390/include/asm/sclp.h
Simple merge

diff --cc arch/s390/kernel/smp.c
Simple merge

diff --cc drivers/s390/char/sclp_early.c
Simple merge