drm/amd/display: Fix misuse of /** to /* in 'dce_i2c_hw.c'

Fix the comment style before cntl_stuck_hw_workaround() by replacing
'/**' with '/*' since it is not a kdoc comment.

Fixes the below with gcc W=1:
display/dc/dce/dce_i2c_hw.c:380: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
* If we boot without an HDMI display, the I2C engine does not get
  initialized

Fixes: 04d57f4 ("drm/amd/display: Workaround for stuck I2C arbitrage")
Cc: Alvin Lee <[email protected]>
Cc: Dominik Kaszewski <[email protected]>
Cc: Ivan Lipski <[email protected]>
Cc: Harry Wentland <[email protected]>
Cc: Tom Chung <[email protected]>
Cc: Roman Li <[email protected]>
Cc: Alex Hung <[email protected]>
Cc: Aurabindo Pillai <[email protected]>
Signed-off-by: Srinivasan Shanmugam <[email protected]>
Reviewed-by: Alex Hung <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

Author: srishanm

drivers/gpu/drm/amd/display/dc/dce/dce_i2c_hw.c

@@ -377,10 +377,16 @@ static bool setup_engine(
 }
 
 /**
+ * cntl_stuck_hw_workaround - Workaround for I2C engine stuck state
+ * @dce_i2c_hw: Pointer to dce_i2c_hw structure
+ *
  * If we boot without an HDMI display, the I2C engine does not get initialized
  * correctly. One of its symptoms is that SW_USE_I2C does not get cleared after
- * acquire, so that after setting SW_DONE_USING_I2C on release, the engine gets
+ * acquire. After setting SW_DONE_USING_I2C on release, the engine gets
  * immediately reacquired by SW, preventing DMUB from using it.
+ *
+ * This function checks the I2C arbitration status and applies a release
+ * workaround if necessary.
  */
 static void cntl_stuck_hw_workaround(struct dce_i2c_hw *dce_i2c_hw)
 {