HWP: Fixed HV-UV and UV transition during STOP entry in case of LE.

In case of LE Hyp in PEF environment, during STOP entry, core must
transition from HV to UV and LE to BE before it can accomplish
SPR self save. Commit handles transition of LE to BE and executes
SC2 in BE. Incase of BE core, LE-BE transition instructions act as
NOP and core executes SC2 for HV-UV transition.

Change-Id: Id0e67f5ba0aa040abba4f7c033da4fb1b25407f1
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/86779
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: PPE CI <ppe-ci+hostboot@us.ibm.com>
Tested-by: Hostboot CI <hostboot-ci+hostboot@us.ibm.com>
Tested-by: HWSV CI <hwsv-ci+hostboot@us.ibm.com>
Reviewed-by: Gregory S Still <stillgs@us.ibm.com>
Reviewed-by: RANGANATHPRASAD G. BRAHMASAMUDRA <prasadbgr@in.ibm.com>
Reviewed-by: Jennifer A Stofer <stofer@us.ibm.com>

Author: premsjha

import/chips/p9/procedures/hwp/lib/p9_hcd_memmap_base.H

@@ -5,7 +5,7 @@
 /*                                                                        */
 /* OpenPOWER HCODE Project                                                */
 /*                                                                        */
-/* COPYRIGHT 2015,2019                                                    */
+/* COPYRIGHT 2015,2020                                                    */
 /* [+] International Business Machines Corp.                              */
 /*                                                                        */
 /*                                                                        */
@@ -465,7 +465,7 @@ HCD_CONST(CME_REGION_SIZE,                      (64 * ONE_KB))
 // HOMER compatibility
 
 HCD_CONST(STOP_API_CPU_SAVE_VER,                0x02)
-HCD_CONST(SELF_SAVE_RESTORE_VER,                0x02)
+HCD_CONST(SELF_SAVE_RESTORE_VER,                0x03)
 HCD_CONST(SMF_SUPPORT_SIGNATURE_OFFSET,         0x1300)
 HCD_CONST(SMF_SELF_SIGNATURE,                   (0x5f534d46))
 // Debug