Fix IHEX firmware generation/loading

Fix both the IHEX firmware generation (len field always null, and EOF
marker a byte too short) and loading (struct ihex_binrec needs to be
packed to reflect the on-disk structure).

Signed-off-by: Marc Zyngier <maz@misterjones.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
diff --git a/include/linux/ihex.h b/include/linux/ihex.h
index 2baace2..31d8629 100644
--- a/include/linux/ihex.h
+++ b/include/linux/ihex.h
@@ -18,7 +18,7 @@
 	__be32 addr;
 	__be16 len;
 	uint8_t data[0];
-} __attribute__((aligned(4)));
+} __attribute__((packed));
 
 /* Find the next record, taking into account the 4-byte alignment */
 static inline const struct ihex_binrec *