[Silabs] : SiWX917- Reduce the task stack and buffer size to reduce t…

…he Ram Consumption (#26242)

* [Silabs] : SiWX917- Reduce the task stack and buffer size to reduce the RAM consumption

* Restyled by clang-format

* Review Comment addressed

---------

Co-authored-by: Restyled.io <commits@restyled.io>

examples/platform/silabs/SiWx917/SiWx917/wfx_rsi.h

@@ -21,10 +21,10 @@
  * Interface to RSI Sapis
  */
 
-#define WFX_RSI_WLAN_TASK_SZ (1024 + 512 + 256 + 1024 + 512) /* Unknown how big this should be 	*/
-#define WFX_RSI_TASK_SZ (1024 + 1024 + 1024)                 /* Stack for the WFX/RSI task		*/
-#define WFX_RSI_BUF_SZ (1024 * 15)                           /* May need tweak 			*/
-#define WFX_RSI_CONFIG_MAX_JOIN (5)                          /* Max join retries			*/
+#define WFX_RSI_WLAN_TASK_SZ (1024 + 512 + 256) /* Stack for the WLAN task	 	*/
+#define WFX_RSI_TASK_SZ (1024 + 1024)           /* Stack for the WFX/RSI task		*/
+#define WFX_RSI_BUF_SZ (1024 * 10)              /* May need tweak 			*/
+#define WFX_RSI_CONFIG_MAX_JOIN (5)             /* Max join retries			*/
 
 /*
  * Various events fielded by the wfx_rsi task