i2c: busses: xgene-slimpro: fix incorrect __init declation for probe

Fix section mismatch error during kernel build for xgene_slimpro_i2c_probe
function. It was incorrectly defined with __init declaration.
Signed-off-by: Feng Kan <fkan@apm.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

drivers/i2c/busses/i2c-xgene-slimpro.c

@@ -377,7 +377,7 @@ static struct i2c_algorithm xgene_slimpro_i2c_algorithm = {
 	.functionality = xgene_slimpro_i2c_func,
 };
 
-static int __init xgene_slimpro_i2c_probe(struct platform_device *pdev)
+static int xgene_slimpro_i2c_probe(struct platform_device *pdev)
 {
 	struct slimpro_i2c_dev *ctx;
 	struct i2c_adapter *adapter;