pinctrl: renesas: No need to initialise global statics

Global static variables don't need to be initialized to 0, because the
compiler will initialize them.
Signed-off-by: Jason Wang <wangborong@cdjrlc.com>
Link: https://lore.kernel.org/r/20210906134040.96642-1-wangborong@cdjrlc.comSigned-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

drivers/pinctrl/renesas/core.c

@@ -741,12 +741,12 @@ static int sh_pfc_suspend_init(struct sh_pfc *pfc) { return 0; }
 #define SH_PFC_MAX_REGS		300
 #define SH_PFC_MAX_ENUMS	3000
 
-static unsigned int sh_pfc_errors __initdata = 0;
-static unsigned int sh_pfc_warnings __initdata = 0;
-static u32 *sh_pfc_regs __initdata = NULL;
-static u32 sh_pfc_num_regs __initdata = 0;
-static u16 *sh_pfc_enums __initdata = NULL;
-static u32 sh_pfc_num_enums __initdata = 0;
+static unsigned int sh_pfc_errors __initdata;
+static unsigned int sh_pfc_warnings __initdata;
+static u32 *sh_pfc_regs __initdata;
+static u32 sh_pfc_num_regs __initdata;
+static u16 *sh_pfc_enums __initdata;
+static u32 sh_pfc_num_enums __initdata;
 
 #define sh_pfc_err(fmt, ...)					\
 	do {							\