efi_loader: add firmware management protocol for raw image

In this commit, a very simple firmware management protocol driver
is implemented. It will take a binary image in a capsule file and
apply the data using dfu backend storage drivers via dfu_write_by_alt()
interface.

So "dfu_alt_info" variable should be properly set to specify a device
and location to be updated. Please read README.dfu.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
diff --git a/include/efi_api.h b/include/efi_api.h
index d6751f6..e82d4ca 100644
--- a/include/efi_api.h
+++ b/include/efi_api.h
@@ -1857,6 +1857,10 @@
 	EFI_GUID(0xae13ff2d, 0x9ad4, 0x4e25, 0x9a, 0xc8, \
 		 0x6d, 0x80, 0xb3, 0xb2, 0x21, 0x47)
 
+#define EFI_FIRMWARE_IMAGE_TYPE_UBOOT_RAW_GUID \
+	EFI_GUID(0xe2bb9c06, 0x70e9, 0x4b14, 0x97, 0xa3, \
+		 0x5a, 0x79, 0x13, 0x17, 0x6e, 0x3f)
+
 #define IMAGE_ATTRIBUTE_IMAGE_UPDATABLE		0x0000000000000001
 #define IMAGE_ATTRIBUTE_RESET_REQUIRED		0x0000000000000002
 #define IMAGE_ATTRIBUTE_AUTHENTICATION_REQUIRED	0x0000000000000004