Refactor Log_Enable API for improved validation and thread safety

[coveyjorjet]

Summary

This PR refactors the Log_Enable TR-181 parameter implementation to improve validation, thread safety, and expand the supported debug modules from 12 to 31.

Reason for change

The existing Log_Enable implementation had several areas for improvement:

• Limited debug modules: Only 12 modules were supported; expanded to 31 to cover all OneWifi, rdk-wifi-hal, and rdk-wifi-libhostap modules
• Thread safety: Used strtok() which is not thread-safe; replaced with strtok_r()
• Input validation: Lacked comprehensive validation; added checks for empty tokens, illegal characters, unknown modules, and buffer overflow protection
• Reconciliation logic: Previously only disabled logs; now properly enables requested modules and disables others

Changes

• Add shared wifi_dbg_flags[] array with 31 debug modules
• Add isValidLogModule() helper for module name validation
• Add validateLogEnable() with comprehensive input validation
• Implement CosaDmlWiFi_getLogEnable() with buffer overflow protection
• Implement CosaDmlWiFi_setLogEnable() with enable/disable reconciliation
• Replace unsafe strtok() with thread-safe strtok_r()
• Refactor cosa_wifi_dml.c to use new API functions

Test Procedure

1. Set Log_Enable via dmcli:
   ```
   dmcli eRT setv Device.WiFi.Log_Enable string "wifiCtrlDbg,wifiMgrDbg"
   ```
2. Verify files are created in /nvram/:
   ```
   ls /nvram/wifiCtrlDbg /nvram/wifiMgrDbg
   ```
3. Get Log_Enable via dmcli and confirm the enabled modules are returned:
   ```
   dmcli eRT getv Device.WiFi.Log_Enable
   ```

Risks

Low - Changes are isolated to Log_Enable functionality with no impact on core WiFi operations.

Thank you for reviewing! 🙏

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[coveyjorjet]

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