tsnep: Fix s390 devm_ioremap_resource warning

The following warning is fixed with additional config dependencies:

s390-linux-ld: drivers/net/ethernet/engleder/tsnep_main.o: in function `tsnep_probe':
tsnep_main.c:(.text+0x1de6): undefined reference to `devm_ioremap_resource'

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Gerhard Engleder <gerhard@engleder-embedded.com>
Link: https://lore.kernel.org/r/20211216200154.1520-1-gerhard@engleder-embedded.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>