configs: ls1043aqds: Configure environment related configs

LS1043A-QDS board requires updation in few environment configs in TFA
and QSPI defconfigs.

Following are the changes:
- Define CONFIG_ENV_ADDR
- Unset CONFIG_SPI_FLASH_BAR
- Enable CONFIG_SYS_RELOC_GD_ENV_ADDR

Signed-off-by: Kuldeep Singh <kuldeep.singh@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>