efuse/esp32: Expands PKG_VER from 3 bit to 4 bits

Closes: IDF-1919

components/bootloader_support/include/bootloader_common.h

@@ -167,6 +167,13 @@ esp_err_t bootloader_common_get_partition_description(const esp_partition_pos_t
  */
 uint8_t bootloader_common_get_chip_revision(void);
 
+/**
+ * @brief Get chip package
+ *
+ * @return Chip package number
+ */
+uint32_t bootloader_common_get_chip_ver_pkg(void);
+
 /**
  * @brief Query reset reason
  *