intel: System Manager refactoring

Refactored system manager driver to be shared across both intel platform

Signed-off-by: Hadi Asyrafi <muhammad.hadi.asyrafi.abdul.halim@intel.com>
Change-Id: Ic4d056c3d15c3152403dc11641c2452770a6162d
diff --git a/plat/intel/soc/agilex/platform.mk b/plat/intel/soc/agilex/platform.mk
index c4904be..d04d630 100644
--- a/plat/intel/soc/agilex/platform.mk
+++ b/plat/intel/soc/agilex/platform.mk
@@ -38,7 +38,6 @@
 		plat/intel/soc/agilex/soc/agilex_clock_manager.c	\
 		plat/intel/soc/agilex/soc/agilex_memory_controller.c	\
 		plat/intel/soc/agilex/soc/agilex_pinmux.c		\
-		plat/intel/soc/agilex/soc/agilex_system_manager.c	\
                 plat/intel/soc/common/bl2_plat_mem_params_desc.c	\
 		plat/intel/soc/common/socfpga_delay_timer.c		\
 		plat/intel/soc/common/socfpga_image_load.c		\
@@ -46,6 +45,7 @@
 		plat/intel/soc/common/soc/socfpga_handoff.c		\
 		plat/intel/soc/common/soc/socfpga_mailbox.c		\
 		plat/intel/soc/common/soc/socfpga_reset_manager.c	\
+		plat/intel/soc/common/soc/socfpga_system_manager.c	\
 		plat/intel/soc/common/drivers/qspi/cadence_qspi.c	\
 		plat/intel/soc/common/drivers/wdt/watchdog.c		\
 		plat/intel/soc/common/drivers/ccu/ncore_ccu.c