Revert "spd.c: Remove dead assignment"

This reverts commit e3cfbc0c70254a78bce48019658eb4fefb05fe5f.

Reason for revert: uninitialized parameter
 
This line "pci_conf_read(0, smbdev, smbfun, 0x08, 1, &x);" is needed to initialize 'x'

Change-Id: I8ccd8cce89dfa29f3313a98e6a3de6a6f0ee1d1d
Reviewed-on: https://review.coreboot.org/c/memtest86plus/+/36725
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
1 file changed