can: peak_pci: Make structure peak_pciec_i2c_bit_ops constant

Static structure peak_pciec_i2c_bit_ops, of type i2c_algo_bit_data, is
not used except to be copied into another variable. Hence make it const
to protect it from modification.

Issue found with Coccinelle.
Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

drivers/net/can/sja1000/peak_pci.c

@@ -417,7 +417,7 @@ static void peak_pciec_write_reg(const struct sja1000_priv *priv,
 	peak_pci_write_reg(priv, port, val);
 }
 
-static struct i2c_algo_bit_data peak_pciec_i2c_bit_ops = {
+static const struct i2c_algo_bit_data peak_pciec_i2c_bit_ops = {
 	.setsda	= pita_setsda,
 	.setscl	= pita_setscl,
 	.getsda	= pita_getsda,