clk: thead: fix dependency on clk_ignore_unused

Add the CLK_IGNORE_UNUSED flag to the vp-axi clock (CLK_VP_AXI) to avoid
depending on clk_ignore_unused in the cmdline. Without this fix, the
emmc-sdio clock (CLK_EMMC_SDIO) fails to work after vp-axi is disabled.

Signed-off-by: Drew Fustini <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Fixes: ae81b69fd2b1 ("clk: thead: Add support for T-Head TH1520 AP_SUBSYS clocks")
Signed-off-by: Stephen Boyd <[e-mail]>

drivers/clk/thead/clk-th1520-ap.c

···
 		.hw.init	= CLK_HW_INIT_PARENTS_HW("vp-axi",
 					      video_pll_clk_parent,
 					      &ccu_div_ops,
-					      0),
+					      CLK_IGNORE_UNUSED),
 	},
 };