leds: flash: Set variables mvflash_{3,4}ch_regs storage-class-specifier to static

Smatch reports:

  drivers/leds/flash/leds-qcom-flash.c:103:18: warning:
    symbol 'mvflash_3ch_regs' was not declared. Should it be static?
  drivers/leds/flash/leds-qcom-flash.c:115:18: warning:
    symbol 'mvflash_4ch_regs' was not declared. Should it be static?

These variables are only used locally, so it should be static.
Signed-off-by: Tom Rix <trix@redhat.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230317191341.1670660-1-trix@redhat.com

drivers/leds/flash/leds-qcom-flash.c

@@ -100,7 +100,7 @@ enum {
 	REG_MAX_COUNT,
 };
 
-struct reg_field mvflash_3ch_regs[REG_MAX_COUNT] = {
+static struct reg_field mvflash_3ch_regs[REG_MAX_COUNT] = {
 	REG_FIELD(0x08, 0, 7),			/* status1	*/
 	REG_FIELD(0x09, 0, 7),                  /* status2	*/
 	REG_FIELD(0x0a, 0, 7),                  /* status3	*/
@@ -112,7 +112,7 @@ struct reg_field mvflash_3ch_regs[REG_MAX_COUNT] = {
 	REG_FIELD(0x4c, 0, 2),                  /* chan_en	*/
 };
 
-struct reg_field mvflash_4ch_regs[REG_MAX_COUNT] = {
+static struct reg_field mvflash_4ch_regs[REG_MAX_COUNT] = {
 	REG_FIELD(0x06, 0, 7),			/* status1	*/
 	REG_FIELD(0x07, 0, 6),			/* status2	*/
 	REG_FIELD(0x09, 0, 7),			/* status3	*/