clk: rockchip: Disable boost summary when build as module

In order to fix the following error when enable DEBUG_FS.
drivers/clk/rockchip/clk-pll.c:1643:1: warning: data definition has no type or storage class
error, forbidden warning:clk-pll.c:1643
 late_initcall(boost_debug_init);
 ^~~~~~~~~~~~~
drivers/clk/rockchip/clk-pll.c:1643:1: error: type defaults to 'int' in declaration of 'late_initcall' [-Werror=implicit-int]
drivers/clk/rockchip/clk-pll.c:1643:1: warning: parameter names (without types) in function declaration
error, forbidden warning:clk-pll.c:1643
drivers/clk/rockchip/clk-pll.c:1623:19: warning: 'boost_debug_init' defined but not used [-Wunused-function]
error, forbidden warning:clk-pll.c:1623
 static int __init boost_debug_init(void)
                   ^~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
scripts/Makefile.build:333: recipe for target 'drivers/clk/rockchip/clk-pll.o' failed
make[4]: *** [drivers/clk/rockchip/clk-pll.o] Error 1

Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com>
Change-Id: I6aa341ea05925f6c05285329fd56b7c1e7f2307b
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>

drivers/clk/rockchip/clk-pll.c

@@ -1600,6 +1600,7 @@ void rockchip_boost_add_core_div(struct clk_hw *hw, unsigned long prate)
 #ifdef CONFIG_DEBUG_FS
 #include <linux/debugfs.h>
 
+#ifndef MODULE
 static int boost_summary_show(struct seq_file *s, void *data)
 {
 	struct rockchip_clk_pll *pll = (struct rockchip_clk_pll *)s->private;
@@ -1717,4 +1718,5 @@ static int __init boost_debug_init(void)
 	return 0;
 }
 late_initcall(boost_debug_init);
-#endif
+#endif /* MODULE */
+#endif /* CONFIG_DEBUG_FS */