ath10k: fix wrong symlink name on error path

Wrong symlink name is used on error path of thermal registration
and also correcting the error message.

Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

diff --cc drivers/net/wireless/ath/ath10k/thermal.c
Simple merge