arm: socfpga: agilex: Add system manager support

Add system manager support for Agilex.

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/mach-socfpga/include/mach/system_manager.h b/arch/arm/mach-socfpga/include/mach/system_manager.h
index 242ef2e..6de0a08 100644
--- a/arch/arm/mach-socfpga/include/mach/system_manager.h
+++ b/arch/arm/mach-socfpga/include/mach/system_manager.h
@@ -8,7 +8,8 @@
 
 phys_addr_t socfpga_get_sysmgr_addr(void);
 
-#if defined(CONFIG_TARGET_SOCFPGA_STRATIX10)
+#if defined(CONFIG_TARGET_SOCFPGA_STRATIX10) || \
+	defined(CONFIG_TARGET_SOCFPGA_AGILEX)
 #include <asm/arch/system_manager_soc64.h>
 #else
 #define SYSMGR_ROMCODEGRP_CTRL_WARMRSTCFGPINMUX	BIT(0)