ice: make ice_get_pf_c827_idx static

The ice_get_pf_c827_idx function is only called inside of ice_ptp_hw.c, so
there is no reason to export it. Mark it static and remove the declaration
from ice_ptp_hw.h
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/intel/ice/ice_ptp_hw.c

@@ -3564,7 +3564,7 @@ int ice_clear_phy_tstamp(struct ice_hw *hw, u8 block, u8 idx)
  * * 0 - success
  * * negative - failure
  */
-int ice_get_pf_c827_idx(struct ice_hw *hw, u8 *idx)
+static int ice_get_pf_c827_idx(struct ice_hw *hw, u8 *idx)
 {
 	struct ice_aqc_get_link_topo cmd;
 	u8 node_part_number;

drivers/net/ethernet/intel/ice/ice_ptp_hw.h

@@ -271,7 +271,6 @@ int ice_read_sma_ctrl_e810t(struct ice_hw *hw, u8 *data);
 int ice_write_sma_ctrl_e810t(struct ice_hw *hw, u8 data);
 int ice_read_pca9575_reg_e810t(struct ice_hw *hw, u8 offset, u8 *data);
 bool ice_is_pca9575_present(struct ice_hw *hw);
-int ice_get_pf_c827_idx(struct ice_hw *hw, u8 *idx);
 enum dpll_pin_type ice_cgu_get_pin_type(struct ice_hw *hw, u8 pin, bool input);
 struct dpll_pin_frequency *
 ice_cgu_get_pin_freq_supp(struct ice_hw *hw, u8 pin, bool input, u8 *num);