x1000: add bad block marker position to nand_chip info

Change-Id: I6f466d87f6f11bc3e23463c469f318ecb7049ba7

firmware/target/mips/ingenic_x1000/nand-x1000.c

@@ -69,6 +69,7 @@ const nand_chip supported_nand_chips[] = {
         .page_size = 2048,
         .oob_size = 64,
         .nr_blocks = 1024,
+        .bbm_pos = 2048,
         .clock_freq = 150000000,
         .dev_conf = jz_orf(SFC_DEV_CONF,
                            CE_DL(1), HOLD_DL(1), WP_DL(1),

firmware/target/mips/ingenic_x1000/nand-x1000.h

@@ -78,6 +78,9 @@ typedef struct nand_chip {
     /* Total number of blocks in the chip */
     unsigned nr_blocks;
 
+    /* Bad block marker offset within the 1st page of a bad block */
+    unsigned bbm_pos;
+
     /* Clock frequency to use */
     uint32_t clock_freq;