Bluetooth: hci_qca: Fix confusing shutdown() and power_off() naming

Bluetooth: hci_qca: Fix confusing shutdown() and power_off() naming

The function called qca_power_off() is actually the hci_dev shutdown
handler, rename it to qca_hci_shutdown() to make this clear.

While the qca_power_shutdown() function is actually the counter-part
of qca_power_on() rename it to qca_power_off() to make this clear.

Signed-off-by: Hans de Goede <johannes.goede@oss.qualcomm.com>
Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>