ixgbe: Fix unreachable retry logic in combined and byte I2C write functions

The current implementation of `ixgbe_write_i2c_combined_generic_int` and
`ixgbe_write_i2c_byte_generic_int` sets `max_retry` to `1`, which makes
the condition `retry < max_retry` always evaluate to `false`. This renders
the retry mechanism ineffective, as the debug message and retry logic are
never executed.

This patch increases `max_retry` to `3` in both functions, aligning them
with the retry logic in `ixgbe_read_i2c_combined_generic_int`. This
ensures that the retry mechanism functions as intended, improving
robustness in case of I2C write failures.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Signed-off-by: Rand Deeb <[email protected]>
Tested-by: Rinitha S <[email protected]> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <[email protected]>

Author: RandDeeb

drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c

@@ -167,7 +167,7 @@ int ixgbe_write_i2c_combined_generic_int(struct ixgbe_hw *hw, u8 addr,
 					 u16 reg, u16 val, bool lock)
 {
 	u32 swfw_mask = hw->phy.phy_semaphore_mask;
-	int max_retry = 1;
+	int max_retry = 3;
 	int retry = 0;
 	u8 reg_high;
 	u8 csum;
@@ -2285,7 +2285,7 @@ static int ixgbe_write_i2c_byte_generic_int(struct ixgbe_hw *hw, u8 byte_offset,
 					    u8 dev_addr, u8 data, bool lock)
 {
 	u32 swfw_mask = hw->phy.phy_semaphore_mask;
-	u32 max_retry = 1;
+	u32 max_retry = 3;
 	u32 retry = 0;
 	int status;