qcacmn: Add LOWI messages to be sent to FW

LOWI messages to register, set capability
and send RTT measurement request are not sent assuming only
LCI and LCR messages are sent out to the FW using ol_ath_lowi_data_req_to_fw.

Add code to send messages other than LCI and LCR through the API in
ol_if_lowi.c when msg subtype is not one of LCI or LCR.

Change-Id: I2deedaa6e03e769bf802337b2ec93d9573eb1b5a
CRs-Fixed: 1079169
diff --git a/wmi_unified_param.h b/wmi_unified_param.h
index c0f4ab0..69b0259 100644
--- a/wmi_unified_param.h
+++ b/wmi_unified_param.h
@@ -4204,6 +4204,8 @@
 		reg_loc_dse:1,
 		dep_sta:1,
 		version:2;
+	uint8_t *colocated_bss;
+	int msg_len;
 };
 
 /**
@@ -4212,6 +4214,7 @@
  */
 struct lcr_set_params {
 	void *lcr_data;
+	int msg_len;
 };
 
 /**