thermal: clock_cooling: Fix missing mutex_init()

The driver allocates the mutex but not initialize it.
Use mutex_init() on it to initialize it correctly.

This is detected by Coccinelle semantic patch.

Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
1 file changed