soc/intel/ehl/tsn_gbe.c: Reduce `void *` casts

Remove two redundant `void *` casts in `clrsetbits32()` calls. In
addition, preemptively retype the `io_mem_base` variable in order
to avoid having to add casts in future commits.

Change-Id: Iae9c8189a6f8cd29181c52c2241789c6d392d77b
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64398
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Mario Scheithauer <mario.scheithauer@siemens.com>

0 files changed, 0 insertions, 0 deletions