feat(freertos): Introduced new Kconfig option CONFIG_FREERTOS_NUMBER_OF_CORES

This commit replaces the use of portNUM_PROCESSORS and configNUM_CORES
macros in all of ESP-IDF. These macros are needed to realize an SMP
scenario by fetching the number of active cores FreeRTOS is running on.
Instead, a new Kconfig option, CONFIG_FREERTOS_NUMBER_OF_CORES, has been
added as a proxy for the FreeRTOS config option, configNUMBER_OF_CORES.
This new commit is now used to realize an SMP scenario in various places
in ESP-IDF.

[Sudeep Mohanty: Added new Kconfig option CONFIG_FREERTOS_NUMBER_OF_CORES]

Signed-off-by: Sudeep Mohanty <sudeep.mohanty@espressif.com>

components/spiffs/test_apps/main/test_spiffs.c

@@ -4,6 +4,7 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
+#include "sdkconfig.h"
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -519,7 +520,7 @@ static void test_spiffs_concurrent(const char* filename_prefix)
 
     printf("writing f1 and f2\n");
     const int cpuid_0 = 0;
-    const int cpuid_1 = portNUM_PROCESSORS - 1;
+    const int cpuid_1 = CONFIG_FREERTOS_NUMBER_OF_CORES - 1;
     xTaskCreatePinnedToCore(&read_write_task, "rw1", stack_size, &args1, 3, NULL, cpuid_0);
     xTaskCreatePinnedToCore(&read_write_task, "rw2", stack_size, &args2, 3, NULL, cpuid_1);