Fix the following sparse warning:

drivers/usb/misc/brcmstb-usb-pinmap.c:219:6: warning: symbol 'sync_all_pins' was not declared. Should it be static?

The sync_all_pins has only call site within brcmstb-usb-pinmap.c
It should be static

Fixes: 517c4c44b323 ("usb: Add driver to allow any GPIO to be used for 7211 USB signals")
Reported-by: Hulk Robot <redacted>
Signed-off-by: Zou Wei <redacted>
---
 drivers/usb/misc/brcmstb-usb-pinmap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/misc/brcmstb-usb-pinmap.c b/drivers/usb/misc/brcmstb-usb-pinmap.c
index 02144c3..cc9618d 100644
--- a/drivers/usb/misc/brcmstb-usb-pinmap.c
+++ b/drivers/usb/misc/brcmstb-usb-pinmap.c

@@ -216,7 +216,7 @@ static int parse_pins(struct device *dev, struct device_node *dn,
 	return 0;
 }
 
-void sync_all_pins(struct brcmstb_usb_pinmap_data *pdata)
+static void sync_all_pins(struct brcmstb_usb_pinmap_data *pdata)
 {
 	struct out_pin *pout;
 	struct in_pin *pin;

-- 
2.6.2


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