hsic: rmnet: Support GET EPID IOCTL
hsic: rmnet: Support GET EPID IOCTL

this ioctl is required to bind rmnet physical channel to logical
channel. usb rmnet interface number will be used for that binding.

Change-Id: I4ccde7e9f8373921aa95c6a3a358707474f9865f
Signed-off-by: Vamsi Krishna <47b0e29304cd078485ecf21b4f20d61eb25fd047@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