mtree: Remove /usr/libdata/lint. Must've overlooked it.
igb: Remove unused macros
igb: Fix comment
em/emx: Avoid using magic number for TX register writing aggregation
kernel: Use __debugvar for stack variables used only by assertion
bge: Avoid using magic number for TX register writing aggregation
bnx: Avoid using magic number for TX register writing aggregation
bce: Make TX register writing aggregation tunable
jme: Avoid using magic number for TX register writing aggregation
tws(4): Fix a typo in a debug message.
bce: Remove debug stuffs

opt_bce.h is still kept, which will be needed for multiple RX/TX queues
debugging options.
bsd.cpu.gcc47.mk: Add default cpu extensions

For the normal case, a standard MACHINE_CPU is supposed to be defined, but
that wasn't happening.  Copy code from bsd.cpu.gcc44.mk to fix dports
looking at MACHINE_CPU variable value.
kernel: Handle some variables only used in debug output.
kernel: Remove some unused variables.
kernel/drm: Put two variables under #if 0 for future use (see comment).
kernel/nmdm: Comment variables which are only used in commented code.
pcidevs: Add PCi device ID for Broadcom 5717C
pcidevs: regen
bnx: Support 5717 C0, which is almost same as 5720 A0

Obtained-from: tg3
kernel/sound: Use pci_{get,set}_powerstate(). Fixes -Wundef.