drivers/aspeed: Fix some issues

* Use probe_resource instead of find_resource. This prevents
  a call to die and instead returns NULL.
* Handle the case where BAR2 isn't present
* Don't hardcode legacy VGA when BAR2 is present. This fixes
  graphic initialisation when the Aspeed isn't the primary GPU
  and thus doesn't decode VGA cycles.

This makes the coreboot code more similar to the Linux kernel code.

Change-Id: I2a99712a562a57c65f1cd0df7b1d7606681afe9b
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50195
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions