Pull request project-chip#1557: [SiWx917] Using the default clock for the sleepy application

Merge in WMN_TOOLS/matter from bugfix/clock_for_sleepy to RC_2.3.0-1.3

Squashed commit of the following:

commit e904493c6175f31db783eaaa72174db218d2ba92
Author: chbansal <chirag.bansal@silabs.com>
Date:   Fri Feb 9 00:48:25 2024 +0530

    don't use configured high freq clock for sleepy

Author: chirag-silabs

src/platform/silabs/platformAbstraction/WiseMcuSpam.cpp

@@ -60,8 +60,10 @@ CHIP_ERROR SilabsPlatform::Init(void)
     // TODO: Setting the highest priority for SVCall_IRQn to avoid the HardFault issue
     NVIC_SetPriority(SVCall_IRQn, CORE_INTERRUPT_HIGHEST_PRIORITY);
 
+#if !CHIP_CONFIG_ENABLE_ICD_SERVER
     // Configuration the clock rate
     soc_pll_config();
+#endif
 
 #if SILABS_LOG_ENABLED
     silabsInitLog();