board: ls1043a: enable EFI_LOADER_BOUNCE_BUFFER

EFI applications need bounce buffers to work properly on these
platforms.

Signed-off-by: Mian Yousaf Kaukab <ykaukab@suse.de>
Reviewed-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
diff --git a/configs/ls1043ardb_SECURE_BOOT_defconfig b/configs/ls1043ardb_SECURE_BOOT_defconfig
index 0a51540..3f5e0b7 100644
--- a/configs/ls1043ardb_SECURE_BOOT_defconfig
+++ b/configs/ls1043ardb_SECURE_BOOT_defconfig
@@ -48,3 +48,4 @@
 CONFIG_RSA=y
 CONFIG_SPL_RSA=y
 CONFIG_RSA_SOFTWARE_EXP=y
+CONFIG_EFI_LOADER_BOUNCE_BUFFER=y