[SL-UP] Custom board part build fix (#597)

Author: chirag-silabs

src/platform/silabs/platformAbstraction/WiseMcuSpam.cpp

@@ -80,9 +80,9 @@ namespace {
 uint8_t sButtonStates[SL_SI91x_BUTTON_COUNT] = { 0 };
 #endif // SL_CATALOG_SIMPLE_BUTTON_PRESENT
 
-#if CHIP_CONFIG_ENABLE_ICD_SERVER
+#if CHIP_CONFIG_ENABLE_ICD_SERVER && defined(SL_CATALOG_SIMPLE_BUTTON_PRESENT)
 bool btn0_pressed = false;
-#endif /* SL_ICD_ENABLED */
+#endif // CHIP_CONFIG_ENABLE_ICD_SERVER && defined(SL_CATALOG_SIMPLE_BUTTON_PRESENT)
 } // namespace
 
 SilabsPlatform SilabsPlatform::sSilabsPlatformAbstractionManager;