usb: gadget: Add snapshot of changes to RNDIS

Add snapshot of changes to RNDIS driver from msm-3.14 made between
commit 455c6fdb (Linux 3.14) and commit 3bc54cf86b (Merge "msm:
camera: Add dummy sub module in sensor pipeline")

The is a squash of the following commits:

USB: rndis: Free the rndis response queue during REMOTE_NDIS_RESET_MSG
USB: f_rndis: Check if cdev is NULL before accessing
RNDIS: Add Data aggregation (multi packet) support
Rndis: Add debug support to disable RNDIS Multipacket Feature
Rndis: Don't request Host to send aggregated RNDIS packets
usb: Add support for rndis uplink aggregation
usb: rndis: reset ul aggregation stats for every set_alt
usb: rndis: Fix zero length skbs in up-link
rndis: usb: set ul aggregation support to 3 rndis packets
USB: gadget: rndis: Add module parameter for DL max packets per xfer
USB: IPA: RNDIS: Add both device and host side parameters
usb: gadget: Add snapshot of QC RNDIS function driver
usb: gadget: Fix invalid pointer access in rndis_free_response
USB: gadget: rndis: Optimize tx path for better performance
USB: gadget: Compilation fixes for 64-bit support
usb: gadget: u_ether: add scatter/gather support
USB: rndis: Protect rndis response queue
usb: gadget: rndis: Limit DL aggregation to 5 packets
drivers: usb: Stop transfers on MSG_HALT
USB: gadget: f_rndis: Add check before queuing notification available
f_qc_rndis: Fix issue with bus resume while using Linux Host
f_rndis: Check if rndis driver is being instantiated

Signed-off-by: Jack Pham <jackp@codeaurora.org>