soc: qcom: smd-rpm: Fix kerneldoc

Fix W=1 compile warnings (invalid kerneldoc):

    drivers/soc/qcom/smd-rpm.c:35: warning: Function parameter or member 'dev' not described in 'qcom_smd_rpm'
    drivers/soc/qcom/smd-rpm.c:99: warning: Function parameter or member 'state' not described in 'qcom_rpm_smd_write'
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200729074415.28393-2-krzk@kernel.orgSigned-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

drivers/soc/qcom/smd-rpm.c

@@ -20,6 +20,7 @@
  * struct qcom_smd_rpm - state of the rpm device driver
  * @rpm_channel:	reference to the smd channel
  * @icc:		interconnect proxy device
+ * @dev:		rpm device
  * @ack:		completion for acks
  * @lock:		mutual exclusion around the send/complete pair
  * @ack_status:		result of the rpm request
@@ -86,6 +87,7 @@ struct qcom_rpm_message {
 /**
  * qcom_rpm_smd_write - write @buf to @type:@id
  * @rpm:	rpm handle
+ * @state:	active/sleep state flags
  * @type:	resource type
  * @id:		resource identifier
  * @buf:	the data to be written