lspci: Parse Intel Vendor specific capabilities

lspci: Parse Intel Vendor specific capabilities

Intel Vendor specific capabilities are present on following devices:
* Intel Host Bridge / DRAM Controller
* Intel Integrated Graphics Controller
* Intel LPC Controller

Intel Host Bridge / DRAM Controller is on BDF address 00:00.0, so following
command should should parse and show Intel Vendor specific capabilities:

  lspci -s 00:00.0 -vv

Currently only Intel Capabilities Version 1 is supported for now. This is
used since second generation of the Intel Core processors (Sandy Bridge).