Fix HB error with -Os compile flag due to eff_config

Top level template is NOT unique between the two files
when using the -Os compile flag. The linker just picks
the wrong file template definition between p9a and p9n.
In -O3 everything is left in place, inline so it just works
which is why we didn't hit this error before in HB

Change-Id: I66fb7db0ee688367600fa1c83cbf6c96006ee0af
Original-Change-Id: I529f93fc91684ae14a132d96f518a5f66f036d4b
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/80167
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Tested-by: HWSV CI <hwsv-ci+hostboot@us.ibm.com>
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Reviewed-by: STEPHEN GLANCY <sglancy@us.ibm.com>
Reviewed-by: Louis Stermole <stermole@us.ibm.com>
Tested-by: Hostboot CI <hostboot-ci+hostboot@us.ibm.com>
Dev-Ready: STEPHEN GLANCY <sglancy@us.ibm.com>
Reviewed-by: Jennifer A Stofer <stofer@us.ibm.com>

src/import/chips/ocmb/explorer/procedures/hwp/memory/lib/shared/exp_consts.H

@@ -90,9 +90,9 @@ enum attr_delay_index
 /// @brief enum list of explorer SPD derived attributes to set
 /// @note these attrs are strictly derived from SPD
 /// @warning wrapped in exp namesapce to be distinguished from
-/// the generic attr_eff_engine_fields
+/// the exp::attr_eff_engine_fields
 ///
-enum attr_eff_engine_fields
+enum class attr_eff_engine_fields
 {
     // Template recursive base case
     ATTR_EFF_BASE_CASE = 0,
@@ -110,7 +110,7 @@ enum attr_eff_engine_fields
     ADDRESS_MIRROR = 10,
 
     // Dispatcher set to last enum value
-    ATTR_EFF_DISPATCHER = ADDRESS_MIRROR,
+    DISPATCHER = ADDRESS_MIRROR,
 };
 
 ///