arm64: config: update l4t defconfig

arm64: config: update l4t defconfig

Enable support for EXT2 FS and disable Preempt
Traces
+CONFIG_EXT2_FS=y
+CONFIG_EXT2_FS_XATTR=y
+CONFIG_EXT2_FS_POSIX_ACL=y
+CONFIG_EXT2_FS_SECURITY=y
-CONFIG_PREEMPT_TRACER=y

Boot.img size is increased by 65280 bytes.

Bug 200190777

Change-Id: Ia8c6141fe96b03f7d835ac1098c6a8956cf3b658
Signed-off-by: Bibek Basu <bbasu@nvidia.com>
Reviewed-on: http://git-master/r/1173084
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>