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/data/bash-completion/scrcpy

@@ -29,6 +29,7 @@ _scrcpy() {
         -N --no-display
         --no-key-repeat
         --no-mipmaps
+        --no-power-on
         --otg
         -p --port=
         --power-off-on-close

app/data/zsh-completion/_scrcpy

@@ -35,6 +35,7 @@ arguments=(
     {-N,--no-display}'[Do not display device \(during screen recording or when V4L2 sink is enabled\)]'
     '--no-key-repeat[Do not forward repeated key events when a key is held down]'
     '--no-mipmaps[Disable the generation of mipmaps]'
+    '--no-power-on[Do not power on the device on start]'
     '--otg[Run in OTG mode \(simulating physical keyboard and mouse\)]'
     {-p,--port=}'[\[port\[\:port\]\] Set the TCP port \(range\) used by the client to listen]'
     '--power-off-on-close[Turn the device screen off when closing scrcpy]'