armv8: LS1088A_QSPI: SECURE_BOOT: Images validation

Validates PPA, MC, DPC, Bootscript, DPL and Kernel images in ESBC
phase using esbc_validate command.

Enable validation of boot.scr script prior to its execution dependent
on "secureboot" flag in environment

Add header address for PPA to be validated during ESBC phase for
LS1088A platform based on LAyerscape Chasis 3.

Moves sec_init prior to ppa_init as for validation of PPA sec must
be initialised before the PPA is initialised.

Signed-off-by: Udit Agarwal <udit.agarwal@nxp.com>
Signed-off-by: Vinitha Pillai-B57223 <vinitha.pillai@nxp.com>
Signed-off-by: Sumit Garg <sumit.garg@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
diff --git a/board/freescale/ls1088a/Kconfig b/board/freescale/ls1088a/Kconfig
index 1ada661..4479dd0 100644
--- a/board/freescale/ls1088a/Kconfig
+++ b/board/freescale/ls1088a/Kconfig
@@ -12,6 +12,7 @@
 config SYS_CONFIG_NAME
 	default "ls1088aqds"
 
+source "board/freescale/common/Kconfig"
 endif
 
 if TARGET_LS1088ARDB
@@ -28,4 +29,5 @@
 config SYS_CONFIG_NAME
 	default "ls1088ardb"
 
+source "board/freescale/common/Kconfig"
 endif