defconfig: remove unnecessary erratum

defconfig: remove unnecessary erratum

This patch removes unnecessary A53 erratum from the defconfig to clean
up the build warnings. The version of ld that we have does not support
the erratum anyway so the config is not of any use.

 arch/arm64/Makefile:23: ld does not support --fix-cortex-a53-843419;
 kernel may be susceptible to erratum

Bug 1987412

Change-Id: I547ea7a7527e788b0d9f00fa70a5ccc4b403fc64
Signed-off-by: Aniruddha Banerjee <aniruddhab@nvidia.com>
Reviewed-on: http://git-master/r/1305292
Signed-off-by: Debarshi Dutta <ddutta@nvidia.com>
(cherry picked from commit 0a2e1896772e13d5d34a91b25f0e1c0fe42465dd in
dev-kernel)
Reviewed-on: https://git-master.nvidia.com/r/1562261
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
Tested-by: Bibek Basu <bbasu@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User