fsi: master-ast-cf: Remove redundant error printing in fsi_master_acf_probe()

When devm_ioremap_resource() fails, a clear enough error message will be
printed by its subfunction __devm_ioremap_resource(). The error
information contains the device name, failure cause, and possibly resource
information.

Therefore, remove the error printing here to simplify code and reduce the
binary size.

Reported-by: Hulk Robot <[e-mail]>
Signed-off-by: Zhen Lei <[e-mail]>
Link: https://patchwork.ozlabs.org/project/linux-fsi/patch/[e-mail]/
Signed-off-by: Joel Stanley <[e-mail]>

drivers/fsi/fsi-master-ast-cf.c

···
 	master->cf_mem = devm_ioremap_resource(&pdev->dev, &res);
  	if (IS_ERR(master->cf_mem)) {
 		rc = PTR_ERR(master->cf_mem);
-		dev_err(&pdev->dev, "Error %d mapping coldfire memory\n", rc);
  		goto err_free;
 	}
 	dev_dbg(&pdev->dev, "DRAM allocation @%x\n", master->cf_mem_addr);