cpufreq: sun50i: Add missing MODULE_DEVICE_TABLE

This patch adds missing MODULE_DEVICE_TABLE definition which generates
correct modalias for automatic loading of this cpufreq driver when it is
compiled as an external module.

Signed-off-by: Pali Rohár <[e-mail]>
Fixes: f328584f7bff8 ("cpufreq: Add sun50i nvmem based CPU scaling driver")
Reviewed-by: Yangtao Li <[e-mail]>
Signed-off-by: Viresh Kumar <[e-mail]>

drivers/cpufreq/sun50i-cpufreq-nvmem.c

···
 	{ .compatible = "allwinner,sun50i-h6" },
 	{}
 };
+MODULE_DEVICE_TABLE(of, sun50i_cpufreq_match_list);
 
 static const struct of_device_id *sun50i_cpufreq_match_node(void)
 {