arm: socfpga: agilex: Enable Agilex SoC build

Add build support for Agilex SoC.

Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 36c9c2f..7d159ec 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -905,7 +905,7 @@
 	bool "Altera SOCFPGA family"
 	select ARCH_EARLY_INIT_R
 	select ARCH_MISC_INIT if !TARGET_SOCFPGA_ARRIA10
-	select ARM64 if TARGET_SOCFPGA_STRATIX10
+	select ARM64 if TARGET_SOCFPGA_STRATIX10 || TARGET_SOCFPGA_AGILEX
 	select CPU_V7A if TARGET_SOCFPGA_GEN5 || TARGET_SOCFPGA_ARRIA10
 	select DM
 	select DM_SERIAL
@@ -917,7 +917,7 @@
 	select SPL_LIBGENERIC_SUPPORT
 	select SPL_NAND_SUPPORT if SPL_NAND_DENALI
 	select SPL_OF_CONTROL
-	select SPL_SEPARATE_BSS if TARGET_SOCFPGA_STRATIX10
+	select SPL_SEPARATE_BSS if TARGET_SOCFPGA_STRATIX10 || TARGET_SOCFPGA_AGILEX
 	select SPL_SERIAL_SUPPORT
 	select SPL_SYSRESET
 	select SPL_WATCHDOG_SUPPORT