drivers: usb: musb: musb_host: fix Rx DMA completion condition.

(cherry picked from commit 33c0ea5fd1e6e19dea63745515c3ebbb3239f0c0)
drivers: usb: serial: option: add support for NTT-docomo L-03D.

(cherry picked from commit 29c58390158fd12773b0e2d366e0707685c2deea)