Add option to not power on on start

By default, on start, the device is powered on. To prevent this
behavior, add a new option --no-power-on.

Fixes #3148 <https://github.com/Genymobile/scrcpy/issues/3148>
PR #3210 <https://github.com/Genymobile/scrcpy/pull/3210>

app/src/scrcpy.c

@@ -324,6 +324,7 @@ scrcpy(struct scrcpy_options *options) {
         .tcpip = options->tcpip,
         .tcpip_dst = options->tcpip_dst,
         .cleanup = options->cleanup,
+        .power_on = options->power_on,
     };
 
     static const struct sc_server_callbacks cbs = {