fw-api: CL 4867158 - update fw common interface files

Change-Id: I5fbd2fdde25be68b7963cc2af3f098c6ce839eb4
WMI: comments for using wmi_mgmt_tx_send_cmd buf by copy
CRs-Fixed: 2262693

fw/wmi_unified.h

@@ -4156,6 +4156,14 @@ typedef struct {
     A_UINT32 vdev_id;
     A_UINT32 desc_id;  /* echoed in tx_compl_event */
     A_UINT32 chanfreq; /* MHz units */
+    /* WMI_MGMT_TX_SEND_CMDID is used for both pass by value and
+     * pass by reference WMI management frames.
+     *
+     * a) If the command is for pass by reference,
+     *    paddr_lo and padd_hi will hold the address of remote/host buffer
+     * b) If the command is for pass by value,
+     *    paddr_lo and paddr_hi will be NULL.
+     */
     A_UINT32 paddr_lo;
     A_UINT32 paddr_hi;
     A_UINT32 frame_len;

fw/wmi_version.h

@@ -36,7 +36,7 @@
 #define __WMI_VER_MINOR_    0
 /** WMI revision number has to be incremented when there is a
  *  change that may or may not break compatibility. */
-#define __WMI_REVISION_ 551
+#define __WMI_REVISION_ 552
 
 /** The Version Namespace should not be normally changed. Only
  *  host and firmware of the same WMI namespace will work