Convert `use` imports to vertical layout for better readability and
maintainability.

Signed-off-by: Guru Das Srinagesh <linux@gurudas.dev>
---
 drivers/pwm/pwm_th1520.rs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/pwm/pwm_th1520.rs b/drivers/pwm/pwm_th1520.rs
index 3e3fa51ccef9..3e4524a1910b 100644
--- a/drivers/pwm/pwm_th1520.rs
+++ b/drivers/pwm/pwm_th1520.rs
@@ -23,7 +23,11 @@
 use core::ops::Deref;
 use kernel::{
     clk::Clk,
-    device::{Bound, Core, Device},
+    device::{
+        Bound,
+        Core,
+        Device, //
+    },
     devres,
     io::{
         mem::IoMem,

-- 
2.54.0