usb: dwc3: gadget: don't request IRQs in atomic

We cannot request an IRQ with spinlocks held
as that would trigger a sleeping inside
spinlock warning.

Cc: <stable@vger.kernel.org> # v3.10
Reported-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Git-repo: https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git


Git-commit: b0d7ffd44ba9cd2dfbf299674418193a5f9ed21a
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>