qcacmn: Update parameter info in API doc

The parameter info is not updated in the
doc for qdf_bitmap interface.

Update the parameter info in the qdf_bitmap interface.

CRs-Fixed: 2660881
Change-Id: I4292d5563c2f92c42673098d7d87385d2b9be113

qdf/inc/qdf_util.h

@@ -142,6 +142,10 @@ typedef __qdf_wait_queue_head_t qdf_wait_queue_head_t;
 
 /**
  * qdf_bitmap - Define a bitmap
+ * @name: name of the bitmap
+ * @bits: num of bits in the bitmap
+ *
+ * Return: none
  */
 #define qdf_bitmap(name, bits) __qdf_bitmap(name, bits)