usb: gadget: rndis: Synchronize downlink packet size
usb: gadget: rndis: Synchronize downlink packet size

Save downlink packet size parameter received from host and
provide it to QBI for synchronization.

CRs-Fixed: 423371
Change-Id: I2cae75cf6fcf29df650f65a4b5656f4172bfa064
Signed-off-by: Anna Perel <c45864de69324ed72976f0f8987640a392ee613d@codeaurora.org>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas