ANDROID: USB: gadget: f_accessory: add support for SuperSpeed Plus

Adds the necessary SuperSpeed Plus support for f_accessory.

[Not upstream as this file is not upstream].

Bug: 170925797
Signed-off-by: taehyun.cho <taehyun.cho@samsung.com>
Change-Id: Ia2a5f4a6cefac2418f8f29bf1a56355b96d80fc0
(cherry picked from commit 00572be28ec474d7953f1b9dd681cc2dd290d9bf)
[willmcvicker: only cherry-pick f_accessory from original patch]
Signed-off-by: Will McVicker <willmcvicker@google.com>
(cherry picked from commit 4d7ced0819d3f30acbde46991393249049cefa05)
Signed-off-by: Will McVicker <willmcvicker@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Git-commit: 9acdbad022c88c958ba69ab3f021f2e8a07cfc45
Git-Repo: https://android.googlesource.com/kernel/common/


Signed-off-by: Pratham Pratap <ppratap@codeaurora.org>