staging: rtl8188eu: os_dep: fix missing spaces around operators

Fix missing space around operators in rtw_alloc2d function in
osdep_service.c
Signed-off-by: Pierre-Yves Kerbrat <pkerbrat@free.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8188eu/os_dep/osdep_service.c

@@ -42,14 +42,14 @@ void *rtw_malloc2d(int h, int w, int size)
 {
 	int j;
 
-	void **a = kzalloc(h*sizeof(void *) + h*w*size, GFP_KERNEL);
+	void **a = kzalloc(h * sizeof(void *) + h * w * size, GFP_KERNEL);
 	if (!a) {
 		pr_info("%s: alloc memory fail!\n", __func__);
 		return NULL;
 	}
 
 	for (j = 0; j < h; j++)
-		a[j] = ((char *)(a+h)) + j*w*size;
+		a[j] = ((char *)(a + h)) + j * w * size;
 
 	return a;
 }