ODROID-N2: config: disable 'CONFIG_AMLOGIC_VMAP'

This patch is to remove the error below.

	[    0.282128] VMAP:handle_vmap_fault address ffffff80200c4000 out of range
	[    0.282152] VMAP:handle_vmap_fault PC is:ffffff800925db6c, copy_mount_options, LR is:ffffff800925dad8 copy_mount_options
	[    0.282159] VMAP:handle_vmap_fault task:44 kdevtmpfs, stack:ffffff80200c0000, ffffffc0cf308960
	[    0.282167] CPU: 0 PID: 44 Comm: kdevtmpfs Not tainted 4.9.162+ #1
	[    0.282172] Hardware name: Hardkernel ODROID-N2 (DT)
	[    0.282178] Call trace:
	[    0.282189] [ffffffc0cf308880+ 128][<ffffff800908b908>] dump_backtrace+0x0/0x288
	[    0.282198] [ffffffc0cf308900+  32][<ffffff800908bc14>] show_stack+0x24/0x30
	[    0.282207] [ffffffc0cf308920+  64][<ffffff800944d560>] dump_stack+0xb0/0xe0
	[    0.282218] [ffffffc0cf308960+  64][<ffffff80099a0544>] handle_vmap_fault+0x1e4/0x218
	[    0.282226] [ffffffc0cf3089a0+   0][<ffffff8009082f68>] el1_da+0x14/0x148
	[    0.282234] [ffffff80200c3d20+  80][<ffffff800925dad8>] copy_mount_options+0xb8/0x1b0
	[    0.282241] [ffffff80200c3d70+  64][<ffffff800925eba8>] SyS_mount+0x70/0x108
	[    0.282251] [ffffff80200c3db0+ 112][<ffffff800957d0f8>] devtmpfsd+0x80/0x190
	[    0.282260] [ffffff80200c3e20+   0][<ffffff80090cd298>] kthread+0xf8/0x110
	[    0.282268] [0000000000000000+   0][<ffffff8009083ad0>] ret_from_fork+0x10/0x40

Change-Id: If59066c6e094be7f25ba33f1978acde03975700c
Signed-off-by: Dongjin Kim <tobetter@gmail.com>

arch/arm64/configs/odroidn2_defconfig

@@ -1804,7 +1804,7 @@ CONFIG_AMLOGIC_MEMORY_EXTEND=y
 CONFIG_AMLOGIC_PAGE_TRACE=y
 CONFIG_AMLOGIC_RAMDUMP=y
 CONFIG_AMLOGIC_CMA=y
-CONFIG_AMLOGIC_VMAP=y
+# CONFIG_AMLOGIC_VMAP is not set
 # CONFIG_AMLOGIC_SLUB_DEBUG is not set
 CONFIG_AMLOGIC_GPIO_IRQ=y