PCI: sysfs: Change permissions from symbolic to octal

We prefer octal permissions over symbolic permissions such as "(S_IWUSR |
S_IWGRP)".  Change all symbolic permissions to octal permissions, e.g.,

  - (S_IWUSR | S_IWGRP)
  + 0220

Link: https://lore.kernel.org/r/20190813204513.4790-3-skunberg.kelsey@gmail.com


Signed-off-by: Kelsey Skunberg <skunberg.kelsey@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Donald Dutile <ddutile@redhat.com>