RDKB-63303, RDKB-63414, RDKB-63743 : Move RdkLogger Scripts to Cron

[ksures101]

Reason for change: Running the rdklogger scripts as cron jobs instead of background processes when the cron is enabled and running as normal background process when the cron is disabled.
Test Procedure: Check scripts are running in crontab when the cron is enabled.
Priority: P1
Risks: None

Signed-off-by: KavyaChowdahalli_Suresh@comcast.com

[Copilot]

Pull request overview

This PR moves RDKB log-monitoring/upload behavior toward a cron-driven execution model when RdkbLogCronEnable is enabled, while keeping the legacy long-running background process path when cron is disabled.

Changes:

• Added a new cron-oriented log monitor script (rdkbLogMonitor_cron.sh) with state/locking to support minute-based execution.
• Simplified rdkbLogMonitor.sh by removing the embedded cron-mode state machine and keeping it as the non-cron (background) implementation.
• Updated fileUploadRandom.sh to add cron-mode locking and adjust when countdown state files are cleared.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 3 comments.

File	Description
rdkbLogMonitor_cron.sh	New cron-mode implementation with boot workflow state tracking, cron self-install, and cron-instance locking.
rdkbLogMonitor.sh	Removes cron-mode scaffolding and keeps background-loop behavior, with boot upload refactoring.
fileUploadRandom.sh	Adds cron-mode lockfile protection and adjusts countdown state cleanup timing.

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