arm64: config: tegra: Enable Ext2 extended attributes

arm64: config: tegra: Enable Ext2 extended attributes

Below VTS tests were failing as ext2 xattr was disabled.

VtsKernelLtp#fs.fs_fill_64bit
VtsKernelLtp#syscalls.fallocate04_64bit
VtsKernelLtp#syscalls.fallocate05_64bit
VtsKernelLtp#syscalls.fsync01_64bit
VtsKernelLtp#syscalls.msync04_64bit
VtsKernelLtp#syscalls.setxattr01_64bit

All above tests passed after enabling ext2 extended attributes.
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT2_FS_SECURITY=y

Bug 200445675

Change-Id: I8e99a047857947490b3cdf711af90ad10a68f988
Reviewed-on: https://git-master.nvidia.com/r/1918385
(cherry picked from commit a00988506a74b6b1e45f30f01e309471a1c21a52)
Signed-off-by: Gagan Grover <ggrover@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1926870
GVS: Gerrit_Virtual_Submit
Reviewed-by: Siddardha Naraharisetti <siddardhan@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>