power: pmic: Correct debug/error output

There is a newline missing from quite a few printf() strings in these pmic
files. Fix them.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
diff --git a/drivers/power/pmic/max8998.c b/drivers/power/pmic/max8998.c
index f571add..f58d9f2 100644
--- a/drivers/power/pmic/max8998.c
+++ b/drivers/power/pmic/max8998.c
@@ -23,7 +23,7 @@
 
 	ret = dm_i2c_write(dev, reg, buff, len);
 	if (ret)
-		pr_err("write error to device: %p register: %#x!", dev, reg);
+		pr_err("write error to device: %p register: %#x!\n", dev, reg);
 
 	return ret;
 }
@@ -34,7 +34,7 @@
 
 	ret = dm_i2c_read(dev, reg, buff, len);
 	if (ret)
-		pr_err("read error from device: %p register: %#x!", dev, reg);
+		pr_err("read error from device: %p register: %#x!\n", dev, reg);
 
 	return ret;
 }