[Midnightbsd-cvs] src: sys/pci: Add support for the 8103E a hardware revision of the 8169.

[laffer1 at midnightbsd.org]

Log Message:
-----------
Add support for the 8103E a hardware revision of the 8169.  

 Follow the lead of vendor's interrupt moderation mechanism.
  It seems RTL8169/RTL8168/RTL810xE has a kind of interrupt
  moderation mechanism but it is not documented at all. The magic
  value dramatically reduced number of interrupts without noticeable
  performance drops so apply it to all RTL8169/RTL8169 controllers.

Obtained from FreeBSD & Realtek FreeBSD driver.

Modified Files:
--------------
    src/sys/pci:
        if_rlreg.h (r1.8 -> r1.9)
        (http://cvsweb.midnightbsd.org/src/sys/pci/if_rlreg.h?r1=1.8&r2=1.9)
    src/sys/dev/re:
        if_re.c (r1.12 -> r1.13)
        (http://cvsweb.midnightbsd.org/src/sys/dev/re/if_re.c?r1=1.12&r2=1.13)