i2c: iproc: Drop unnecessary initialisation of 'ret'

The 'ret' variable doesn't need to be initialised, as it is
always assigned before use.

While here, reorder the variable declarations in reverse
Christmas tree style, by line length.

Link: https://lore.kernel.org/r/20250418211635.2666234-2-andi.shyti@kernel.org
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>

Author: Andi Shyti

drivers/i2c/busses/i2c-bcm-iproc.c

@@ -1039,9 +1039,9 @@ static int bcm_iproc_i2c_cfg_speed(struct bcm_iproc_i2c_dev *iproc_i2c)
 
 static int bcm_iproc_i2c_probe(struct platform_device *pdev)
 {
-	int irq, ret = 0;
 	struct bcm_iproc_i2c_dev *iproc_i2c;
 	struct i2c_adapter *adap;
+	int irq, ret;
 
 	iproc_i2c = devm_kzalloc(&pdev->dev, sizeof(*iproc_i2c),
 				 GFP_KERNEL);