staging: r8188eu: Prefer kcalloc over kzalloc

Fixed following checkpatch.pl warning:
 * WARNING: Prefer kcalloc over kzalloc with multiply

Instead of specifying (number of bytes) * (size) as arugment
in kzalloc, prefer kcalloc.
Signed-off-by: Kang Minchul <tegongkang@gmail.com>
Tested-by: Philipp Hortmann <philipp.g.hortmann@gmail.com> # Edimax N150
Reviewed-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20221216223942.334221-1-tegongkang@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/core/rtw_xmit.c

@@ -1564,7 +1564,7 @@ int rtw_alloc_hwxmits(struct adapter *padapter)
 
 	pxmitpriv->hwxmit_entry = HWXMIT_ENTRY;
 
-	pxmitpriv->hwxmits = kzalloc(sizeof(struct hw_xmit) * pxmitpriv->hwxmit_entry, GFP_KERNEL);
+	pxmitpriv->hwxmits = kcalloc(pxmitpriv->hwxmit_entry, sizeof(struct hw_xmit), GFP_KERNEL);
 	if (!pxmitpriv->hwxmits)
 		return -ENOMEM;