staging: rtl8712: consolidate kmalloc + memset 0 to kzalloc

This is an API consolidation only. The use of kmalloc + memset to 0
here is equivalent to kzalloc.
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8712/rtl871x_recv.c

@@ -72,14 +72,12 @@ sint _r8712_init_recv_priv(struct recv_priv *precvpriv,
 	_init_queue(&precvpriv->recv_pending_queue);
 	precvpriv->adapter = padapter;
 	precvpriv->free_recvframe_cnt = NR_RECVFRAME;
-	precvpriv->pallocated_frame_buf = kmalloc(NR_RECVFRAME *
+	precvpriv->pallocated_frame_buf = kzalloc(NR_RECVFRAME *
 				sizeof(union recv_frame) + RXFRAME_ALIGN_SZ,
 				GFP_ATOMIC);
 	if (precvpriv->pallocated_frame_buf == NULL)
 		return _FAIL;
 	kmemleak_not_leak(precvpriv->pallocated_frame_buf);
-	memset(precvpriv->pallocated_frame_buf, 0, NR_RECVFRAME *
-		sizeof(union recv_frame) + RXFRAME_ALIGN_SZ);
 	precvpriv->precv_frame_buf = precvpriv->pallocated_frame_buf +
 				    RXFRAME_ALIGN_SZ -
 				    ((addr_t)(precvpriv->pallocated_frame_buf) &