imx: correct HAB status for new chip TO

According to:

http://git.freescale.com/git/cgit.cgi/imx/uboot-imx.git/log/?h=imx_v2009.08_3.0.35_4.1.0

ENGR00287268 mx6: fix the secure boot issue on the new tapout chip
commit 424cb1a79e9f5ae4ede9350dfb5e10dc9680e90b

newer i.MX6 silicon revisions have an updated ROM and HAB API table.
Please see also:

i.MX Applications Processors Documentation
Engineering Bulletins
EB803, i.MX 6Dual/6Quad Applications Processor Silicon Revsion 1.2 to 1.3 Comparison

With this change the secure boot status is correctly displayed

Signed-off-by: Stefano Babic <sbabic@denx.de>
diff --git a/arch/arm/include/asm/arch-mx6/imx-regs.h b/arch/arm/include/asm/arch-mx6/imx-regs.h
index 1f19727..a69a753 100644
--- a/arch/arm/include/asm/arch-mx6/imx-regs.h
+++ b/arch/arm/include/asm/arch-mx6/imx-regs.h
@@ -217,6 +217,8 @@
 #define IP2APB_USBPHY2_BASE_ADDR    (AIPS2_OFF_BASE_ADDR + 0x7C000)
 
 #define CHIP_REV_1_0                 0x10
+#define CHIP_REV_1_2                 0x12
+#define CHIP_REV_1_5                 0x15
 #define IRAM_SIZE                    0x00040000
 #define FEC_QUIRK_ENET_MAC