mb/asus/f2a85-m_pro: Clean up super-I/O GPIO settings

Drop useless writes to read-only registers and don't re-write
default 0x00 values. In detail:

* Don't write read-only status registers.
* Don't try to write input bits in data registers
  (iow. mask data values: `data &= ~io`).
* Don't write data registers if all GPIOs are set as
  inputs (`io == 0xff`).
* Don't write default 0x00 for inversion and multiplex
  registers.

Note: Both GPIO0 and WDT1 values look spurious. Maybe they
were dumped with the virtual devices disabled?

Change-Id: I7d948d6b697285e61e4352b7354b924dbf511e9a
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46020
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions