usb: gadget: f_hid add super speed support

Add super speed descriptors to f_hid.

Change-Id: I81f9c89963218d27c37f2a25e71245f2ee81a388
Signed-off-by: Janusz Dziedzic <januszx.dziedzic@linux.intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Git-commit: dbf499cf720a0096acea7641492d9edeffc25d10
Git-repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git


[ajaya@codeaurora.org: drop changes for SSP descriptors]
Signed-off-by: Ajay Agarwal <ajaya@codeaurora.org>