board: ls1046qds: Enable PPA for secure boot

Re-organize defconfig and enabled PPA for secure boot

Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
diff --git a/configs/ls1046aqds_SECURE_BOOT_defconfig b/configs/ls1046aqds_SECURE_BOOT_defconfig
index de8cab6..5ba600e 100644
--- a/configs/ls1046aqds_SECURE_BOOT_defconfig
+++ b/configs/ls1046aqds_SECURE_BOOT_defconfig
@@ -2,10 +2,10 @@
 CONFIG_TARGET_LS1046AQDS=y
 CONFIG_SYS_TEXT_BASE=0x60100000
 CONFIG_SECURE_BOOT=y
+CONFIG_FSL_LS_PPA=y
 CONFIG_AHCI=y
 CONFIG_DISTRO_DEFAULTS=y
 CONFIG_NR_DRAM_BANKS=2
-CONFIG_FIT=y
 CONFIG_FIT_VERBOSE=y
 CONFIG_OF_BOARD_SETUP=y
 CONFIG_BOOTDELAY=10