cxl/pci: Check Mem_info_valid bit for each applicable DVSEC

cxl/pci: Check Mem_info_valid bit for each applicable DVSEC

In theory a device might set the mem_info_valid bit for a first range
after it is ready but before as second range has reached that state.
Therefore, the correct approach is to check the Mem_info_valid bit for
each applicable DVSEC range against HDM_COUNT, rather than only for the
DVSEC range 1. Consequently, let's move the check into the "for loop"
that handles each DVSEC range.

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Yanfei Xu <yanfei.xu@intel.com>
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Link: https://patch.msgid.link/20240828084231.1378789-4-yanfei.xu@intel.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>