usb: musb: Ensure rx reinit occurs for shared_fifo endpoints

usb: musb: Ensure rx reinit occurs for shared_fifo endpoints

commit f3eec0cf784e0d6c47822ca6b66df3d5812af7e6 upstream.

shared_fifo endpoints would only get a previous tx state cleared
out, the rx state was only cleared for non shared_fifo endpoints
Change this so that the rx state is cleared for all endpoints.
This addresses an issue that resulted in rx packets being dropped
silently.

Signed-off-by: Andrew Goodbody <andrew.goodbody@cambrionix.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>