CHROMIUM: Change the frame buffer addresses in FDT as same as kernel ones.

This value is from kernel, arch/arm/mach-tegra/board-seaboard-panel.c
        {
                .name   = "fbmem",
                .start  = 0x18012000,
                /* enough space for 1368*910 32bpp */
                .end    = 0x18012000 + 0x97f680 - 1,
                .flags  = IORESOURCE_MEM,
        },

BUG=chrome-os-partner:5338
TEST=build without error.

Change-Id: I614c85e8fbec4031925b07061ee7ec0251e3cd70