i2c: busses: make i2c_algorithm const

Make these const as they are only stored in the algo field of
i2c_adapter structure, which is const.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

drivers/i2c/busses/i2c-pnx.c

@@ -590,7 +590,7 @@ static u32 i2c_pnx_func(struct i2c_adapter *adapter)
 	return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
 }
 
-static struct i2c_algorithm pnx_algorithm = {
+static const struct i2c_algorithm pnx_algorithm = {
 	.master_xfer = i2c_pnx_xfer,
 	.functionality = i2c_pnx_func,
 };

drivers/i2c/busses/i2c-puv3.c

@@ -175,7 +175,7 @@ static u32 puv3_i2c_func(struct i2c_adapter *adapter)
 	return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
 }
 
-static struct i2c_algorithm puv3_i2c_algorithm = {
+static const struct i2c_algorithm puv3_i2c_algorithm = {
 	.master_xfer	= puv3_i2c_xfer,
 	.functionality	= puv3_i2c_func,
 };