io_block: define MAX_IO_BLOCK_DEVICES as unsigned
This is used as a table index, and already compared with an unsigned int:
block_dev_count.
Signed-off-by: Yann Gautier <yann.gautier@st.com>
diff --git a/plat/hisilicon/poplar/include/platform_def.h b/plat/hisilicon/poplar/include/platform_def.h
index 6287a76..e39d944 100644
--- a/plat/hisilicon/poplar/include/platform_def.h
+++ b/plat/hisilicon/poplar/include/platform_def.h
@@ -40,7 +40,7 @@
/* IO framework user */
#define MAX_IO_DEVICES (4)
#define MAX_IO_HANDLES (4)
-#define MAX_IO_BLOCK_DEVICES (2)
+#define MAX_IO_BLOCK_DEVICES U(2)
/* Memory size options */
#define POPLAR_DRAM_SIZE_1G 0