net: aquantia: make two symbols be static

When using ARCH=mips CROSS_COMPILE=mips-linux-gnu-
to build drivers/net/ethernet/aquantia/atlantic/aq_ptp.o
and drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.o,
below errors can be seen:
drivers/net/ethernet/aquantia/atlantic/aq_ptp.c:1378:6:
warning: symbol 'aq_ptp_poll_sync_work_cb' was not declared.
Should it be static?

drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c:1155:5:
warning: symbol 'hw_atl_b0_ts_to_sys_clock' was not declared.
Should it be static?

This patch to make aq_ptp_poll_sync_work_cb and hw_atl_b0_ts_to_sys_clock
be static to fix these warnings.

Fixes: 9c477032 ("net: aquantia: add support for PIN funcs")
Signed-off-by: Mao Wenan <maowenan@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/aquantia/atlantic/aq_ptp.c

@@ -1375,7 +1375,7 @@ static int aq_ptp_check_sync1588(struct aq_ptp_s *aq_ptp)
 	return 0;
 }
 
-void aq_ptp_poll_sync_work_cb(struct work_struct *w)
+static void aq_ptp_poll_sync_work_cb(struct work_struct *w)
 {
 	struct delayed_work *dw = to_delayed_work(w);
 	struct aq_ptp_s *aq_ptp = container_of(dw, struct aq_ptp_s, poll_sync);

drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c

@@ -1152,7 +1152,7 @@ static int hw_atl_b0_set_sys_clock(struct aq_hw_s *self, u64 time, u64 ts)
 	return hw_atl_b0_adj_sys_clock(self, delta);
 }
 
-int hw_atl_b0_ts_to_sys_clock(struct aq_hw_s *self, u64 ts, u64 *time)
+static int hw_atl_b0_ts_to_sys_clock(struct aq_hw_s *self, u64 ts, u64 *time)
 {
 	*time = self->ptp_clk_offset + ts;
 	return 0;