nand: Embed mtd_info in struct nand_chip

nand_info[] is now an array of pointers, with the actual mtd_info
instance embedded in struct nand_chip.

This is in preparation for syncing the NAND code with Linux 4.6,
which makes the same change to struct nand_chip.  It's in a separate
commit due to the large amount of changes required to accommodate the
change to nand_info[].

Signed-off-by: Scott Wood <oss@buserror.net>
diff --git a/common/splash_source.c b/common/splash_source.c
index a09dd4b..f86a78a 100644
--- a/common/splash_source.c
+++ b/common/splash_source.c
@@ -45,9 +45,9 @@
 #ifdef CONFIG_CMD_NAND
 static int splash_nand_read_raw(u32 bmp_load_addr, int offset, size_t read_size)
 {
-	return nand_read_skip_bad(&nand_info[nand_curr_device], offset,
+	return nand_read_skip_bad(nand_info[nand_curr_device], offset,
 				  &read_size, NULL,
-				  nand_info[nand_curr_device].size,
+				  nand_info[nand_curr_device]->size,
 				  (u_char *)bmp_load_addr);
 }
 #else