armv8: ls1088 : MC alignment should always be fixed to 512MB

Signed-off-by: Ashish Kumar <Ashish.Kumar@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>

arch/arm/cpu/armv8/fsl-layerscape/Kconfig

@@ -493,8 +493,7 @@ config SYS_FSL_HAS_RGMII
 config SYS_MC_RSV_MEM_ALIGN
 	hex "Management Complex reserved memory alignment"
 	depends on RESV_RAM
-	default 0x20000000 if ARCH_LS2080A
-	default 0x70000000 if ARCH_LS1088A
+	default 0x20000000 if ARCH_LS2080A || ARCH_LS1088A
 	help
 	  Reserved memory needs to be aligned for MC to use. Default value
 	  is 512MB.