i2c: qup: use proper type fro clk_freq

It is used with of_property_read_u32(), so it should be u32.

Signed-off-by: Wolfram Sang <[e-mail]>
Acked-by: Bjorn Andersson <[e-mail]>
Fixes: 10c5a8425968 ('i2c: qup: New bus driver for the Qualcomm QUP I2C controller')

drivers/i2c/busses/i2c-qup.c

···
 	u32 io_mode, hw_ver, size;
 	int ret, fs_div, hs_div;
 	int src_clk_freq;
-	int clk_freq = 100000;
+	u32 clk_freq = 100000;
 
 	qup = devm_kzalloc(&pdev->dev, sizeof(*qup), GFP_KERNEL);
 	if (!qup)