intel: Platform common code refactor

Pull out common code from aarch64 and include

Signed-off-by: Hadi Asyrafi <muhammad.hadi.asyrafi.abdul.halim@intel.com>
Change-Id: I4d0f5e1bb01bcdacbedf8e6c359de594239b645f
diff --git a/plat/intel/soc/agilex/socfpga_psci.c b/plat/intel/soc/agilex/socfpga_psci.c
index 411e89b..04d8a0e 100644
--- a/plat/intel/soc/agilex/socfpga_psci.c
+++ b/plat/intel/soc/agilex/socfpga_psci.c
@@ -17,7 +17,7 @@
 #define AGX_RSTMGR_OFST			0xffd11000
 #define AGX_RSTMGR_MPUMODRST_OFST	0x20
 
-uintptr_t *agilex_sec_entry = (uintptr_t *) PLAT_AGX_SEC_ENTRY;
+uintptr_t *agilex_sec_entry = (uintptr_t *) PLAT_SEC_ENTRY;
 uintptr_t *cpuid_release = (uintptr_t *) PLAT_CPUID_RELEASE;
 
 /*******************************************************************************