cmd, nand: add more info to "nand info"

add subpagesize, nand options and bbt options to the
"nand info" output.

=> nand info

Device 0: nand0, sector size 256 KiB
  Page size       4096 b
  OOB size         256 b
  Erase size    262144 b
  subpagesize     4096 b
  options     0x     200
  bbt options 0x    8000

Signed-off-by: Heiko Schocher <hs@denx.de>
diff --git a/common/cmd_nand.c b/common/cmd_nand.c
index 17fa7ea..9433c80 100644
--- a/common/cmd_nand.c
+++ b/common/cmd_nand.c
@@ -394,9 +394,12 @@
 		printf("%dx ", chip->numchips);
 	printf("%s, sector size %u KiB\n",
 	       nand->name, nand->erasesize >> 10);
-	printf("  Page size  %8d b\n", nand->writesize);
-	printf("  OOB size   %8d b\n", nand->oobsize);
-	printf("  Erase size %8d b\n", nand->erasesize);
+	printf("  Page size   %8d b\n", nand->writesize);
+	printf("  OOB size    %8d b\n", nand->oobsize);
+	printf("  Erase size  %8d b\n", nand->erasesize);
+	printf("  subpagesize %8d b\n", chip->subpagesize);
+	printf("  options     0x%8x\n", chip->options);
+	printf("  bbt options 0x%8x\n", chip->bbt_options);
 
 	/* Set geometry info */
 	setenv_hex("nand_writesize", nand->writesize);