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/rn5t567.c b/drivers/power/pmic/rn5t567.c
index c3be3fe..f238396 100644
--- a/drivers/power/pmic/rn5t567.c
+++ b/drivers/power/pmic/rn5t567.c
@@ -24,7 +24,7 @@
 
 	ret = dm_i2c_write(dev, reg, buff, len);
 	if (ret) {
-		debug("write error to device: %p register: %#x!", dev, reg);
+		debug("write error to device: %p register: %#x!\n", dev, reg);
 		return ret;
 	}
 
@@ -37,7 +37,7 @@
 
 	ret = dm_i2c_read(dev, reg, buff, len);
 	if (ret) {
-		debug("read error from device: %p register: %#x!", dev, reg);
+		debug("read error from device: %p register: %#x!\n", dev, reg);
 		return ret;
 	}