espressif: modify SOC_FAMILY according to new HWMv2

Update FAMILY reference as needed.

Signed-off-by: Sylvio Alves <sylvio.alves@espressif.com>
diff --git a/boot/zephyr/flash_map_extended.c b/boot/zephyr/flash_map_extended.c
index 64e8008..d0744af 100644
--- a/boot/zephyr/flash_map_extended.c
+++ b/boot/zephyr/flash_map_extended.c
@@ -28,7 +28,7 @@
 #define FLASH_DEVICE_BASE 0
 #define FLASH_DEVICE_NODE DT_INST(0, jedec_spi_nor)
 
-#elif defined(CONFIG_SOC_FAMILY_ESP32)
+#elif defined(CONFIG_SOC_FAMILY_ESPRESSIF_ESP32)
 
 #define FLASH_DEVICE_ID SPI_FLASH_0_ID
 #define FLASH_DEVICE_BASE 0