HMI does not set default "PLAY_PAUSE" playback indicator in case App request SetMediaClockTimer without audioStreamingIndicator parameter

[VjKlepikov]

HMI does not set default "PLAY_PAUSE" playback indicator in case App request SetMediaClockTimer without audioStreamingIndicator parameter

Precondition:
1. SDL and HMI are started
2. App with HMI type 'Media' is registered
3. App is activated
4. App sends SetMediaClockTimer RPC with:
"updateMode":"COUNTUP",
"startTime": { "hours":0, "minutes":15, "seconds":30 },
"audioStreamingIndicator":"PAUSE"
5. The seek indicators are "PAUSE" for App
'PLAY_PAUSE' button with "ico_pause.png" image is observed on HMI

Steps to reproduce:

1. Send SetMediaClockTimer RPC without audioStreamingIndicator:
   "updateMode":"COUNTUP",
   "startTime": { "hours":0, "minutes":15, "seconds":30 }

Expected result:

1. HMI sets default "PLAY_PAUSE" playback indicator
   'PLAY_PAUSE' button with "ico_play_pause.png" image is observed on HMI

Actual result:

1. HMI does not set default "PLAY_PAUSE" playback indicator
   'PLAY_PAUSE' button with "ico_pause.png" image is observed on HMI
   

Environment:
SDL: https://github.com/smartdevicelink/sdl_core/tree/develop (fed2ae4)
HMI: https://github.com/smartdevicelink/sdl_hmi/tree/develop (ad2dc80)
SPT: 20210305-Android (1076)

[ShobhitAd]

Closed via #572