Add cooling device stat dump in BR

Test: Verified dumpstate_board.txt

(cherry picked from commit 3a3004d07a1db8d23a71a6481bbeb5d31a03d173)

Change-Id: I7d42bce8d63da01ee2415349926eec6506d1b062
Signed-off-by: TeYuan Wang <kamewang@google.com>
1 file changed