media: s5p-mfc: Fix encoder menu controls initialization

This patch fixes the menu_skip_mask field initialization and
addresses a following issue found by the SVACE static analysis:

* NO_EFFECT.SELF: assignment to self in expression 'cfg.menu_skip_mask = cfg.menu_skip_mask'
  No effect at drivers/media/platform/s5p-mfc/s5p_mfc_enc.c:2083
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/platform/s5p-mfc/s5p_mfc_enc.c

@@ -2080,7 +2080,7 @@ int s5p_mfc_enc_ctrls_setup(struct s5p_mfc_ctx *ctx)
 
 			if (cfg.type == V4L2_CTRL_TYPE_MENU) {
 				cfg.step = 0;
-				cfg.menu_skip_mask = cfg.menu_skip_mask;
+				cfg.menu_skip_mask = controls[i].menu_skip_mask;
 				cfg.qmenu = mfc51_get_menu(cfg.id);
 			} else {
 				cfg.step = controls[i].step;