gpio-button-hotplug: add KEY_POWER2 handling

For devices such as BTHOMEHUBV5A with both reset and restart buttons,
its easily accessible restart button has been assigned to KEY_POWER
power script to poweroff preventing accidental (or malicious) factory
resets by KEY_RESTART reset script. However an easily accessible button
immediately powering off the device is also undesirable.

As KEY_RESTART is already used for reset script (and there's no
KEY_REBOOT in Linux input events), use KEY_POWER2 for rebooting via new
reboot script with 5 second seen delay.

Fixes: FS#1965
Signed-off-by: Alan Swanson <[email protected]>
Signed-off-by: Petr Štetiar <[email protected]> [long line wrap]

package/kernel/gpio-button-hotplug/src/gpio-button-hotplug.c

@@ -100,6 +100,7 @@ static struct bh_map button_map[] = {
 	BH_MAP(KEY_LIGHTS_TOGGLE,	"lights_toggle"),
 	BH_MAP(KEY_PHONE,		"phone"),
 	BH_MAP(KEY_POWER,		"power"),
+	BH_MAP(KEY_POWER2,		"reboot"),
 	BH_MAP(KEY_RESTART,		"reset"),
 	BH_MAP(KEY_RFKILL,		"rfkill"),
 	BH_MAP(KEY_VIDEO,		"video"),