clk: ast2600: allow empty entries in aspeed_g6_gates

We're about to remove an entry from aspeed_g6_gates, but we won't want
to alter/reorder existing entries. Allow empty entries in this array.

Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au>
Link: https://lore.kernel.org/r/20230302005834.13171-2-jk@codeconstruct.com.au
Tested-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

drivers/clk/clk-ast2600.c

@@ -652,6 +652,9 @@ static int aspeed_g6_clk_probe(struct platform_device *pdev)
 		const struct aspeed_gate_data *gd = &aspeed_g6_gates[i];
 		u32 gate_flags;
 
+		if (!gd->name)
+			continue;
+
 		/*
 		 * Special case: the USB port 1 clock (bit 14) is always
 		 * working the opposite way from the other ones.