clk: sprd: add missing MODULE_DESCRIPTION() macro

make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/sprd/clk-sprd.o

Add the missing invocation of the MODULE_DESCRIPTION() macro.

Signed-off-by: Jeff Johnson <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Stephen Boyd <[e-mail]>

drivers/clk/sprd/common.c

···
 }
 EXPORT_SYMBOL_GPL(sprd_clk_probe);
 
+MODULE_DESCRIPTION("Spreadtrum clock infrastructure");
 MODULE_LICENSE("GPL v2");