soc/intel/xeon_sp/cpx: consider stack personality
Each IIO stack has a personality. Only when personality of a stack is
TYPE_UBOX_IIO, the stack has PCIe devices.
For example, for CPX-SP, the stack 3 has personality of TYPE_UBOX, it
does not have PCIe devices.
Signed-off-by: Jonathan Zhang <jonzhang@fb.com>
Signed-off-by: Reddy Chagam <anjaneya.chagam@intel.com>
Change-Id: I2f6bfdac4d1110dd95f1b3a72e2e51f70c79212b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42333
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>