netd: Set sys.usb.tethering to true on Tethering

Introduce a system property "sys.usb.tethering" and set it to
true when USB tethering is enabled which gives the scope for USB
module to alter the rps mask values whenever tethering is
enabled to fix the RNDIS Throughput degradation issue in
Uplink and Bi-directional cases due to out-of-order packets.

Change-Id: I1d471360b851c01c3ff511324151dfd9dd91479f
2 files changed
tree: 34261d409f230999678e0871479bc84b4d14f518
  1. client/
  2. include/
  3. server/
  4. Android.mk