rpmsg: update documentation

rpmsg_create_ept() takes struct rpmsg_channel_info chinfo as its last
argument, not a u32 value. The first two arguments are also updated.
Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20200722150927.15587-4-guennadi.liakhovetski@linux.intel.comSigned-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

Documentation/rpmsg.txt

@@ -192,9 +192,9 @@ Returns 0 on success and an appropriate error value on failure.
 
 ::
 
-  struct rpmsg_endpoint *rpmsg_create_ept(struct rpmsg_channel *rpdev,
-		void (*cb)(struct rpmsg_channel *, void *, int, void *, u32),
-		void *priv, u32 addr);
+  struct rpmsg_endpoint *rpmsg_create_ept(struct rpmsg_device *rpdev,
+					  rpmsg_rx_cb_t cb, void *priv,
+					  struct rpmsg_channel_info chinfo);
 
 every rpmsg address in the system is bound to an rx callback (so when
 inbound messages arrive, they are dispatched by the rpmsg bus using the