ARM: OMAP2+: Make symbol 'pdata_quirks_init_clocks' static

The sparse tool complains as follows:

arch/arm/mach-omap2/pdata-quirks.c:578:1: warning:
 symbol 'pdata_quirks_init_clocks' was not declared. Should it be static?

This symbol is not used outside of pdata-quirks.c, so this
commit marks it static.

Fixes: a15de032 ("ARM: OMAP2+: Init both prm and prcm nodes early for clocks")
Reported-by: Hulk Robot <hulkci@huawei.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/pdata-quirks.c

@@ -574,7 +574,7 @@ static const char * const pdata_quirks_init_nodes[] = {
 	"prm",
 };
 
-void __init
+static void __init
 pdata_quirks_init_clocks(const struct of_device_id *omap_dt_match_table)
 {
 	struct device_node *np;