Add Firmware Image Package (FIP) driver

The Firmware Image Package (FIP) driver allows for data to be loaded
from a FIP on platform storage. The FVP supports loading bootloader
images from a FIP located in NOR FLASH.

The implemented FVP policy states that bootloader images will be
loaded from a FIP in NOR FLASH if available and fall back to loading
individual images from semi-hosting.

NOTE:
- BL3-3(e.g. UEFI) is loaded into DRAM and needs to be configured
  to run from the BL33_BASE address. This is currently set to
  DRAM_BASE+128MB for the FVP.

Change-Id: I2e4821748e3376b5f9e467cf3ec09509e43579a0
diff --git a/include/io_storage.h b/include/io_storage.h
index f67e5d0..04e63c3 100644
--- a/include/io_storage.h
+++ b/include/io_storage.h
@@ -42,7 +42,8 @@
 typedef enum {
 	IO_TYPE_INVALID,
 	IO_TYPE_SEMIHOSTING,
-	IO_TYPE_BLOCK,
+	IO_TYPE_MEMMAP,
+	IO_TYPE_FIRMWARE_IMAGE_PACKAGE,
 	IO_TYPE_MAX
 } io_type;