bootloader_support: Fix unused-but-set-variable compiler warning
When building with BOOTLOADER_LOG_LEVEL lesser then VERBOSE, an error
code variable was being set but not consumed, resulting in a compiler
warning.
@@ -722,7 +722,8 @@ static void set_cache_and_start_app(
uint32_t irom_size,
uint32_t entry_addr)
{
- int rc;
+ int rc __attribute__((unused));
+
ESP_LOGD(TAG, "configure drom and irom and start");
#if CONFIG_IDF_TARGET_ESP32
Cache_Read_Disable(0);
