Revert "usb: dwc3: gadget: Fix logical condition"

This reverts commit a7f7e612.

This is a preparation change for merging android-5.4.5 into
msm-5.4 branch.

The reverted change is basically preventing the adbd userspace
daemon from ever receiving packets from the kernel USB driver.

Change-Id: I083e78968b72e8e0c4529d732c3b1ab5f9946224
Reported-by: Jack Pham <jackp@codeaurora.org>
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>