Add L1 for p9a_mss_bulk_pwr_throttles and p9a_mss_utils_to_throttle

Change-Id: Icd016e70c11cb94dd8ab7259bc2874f5a1d84a86
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/70502
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Reviewed-by: STEPHEN GLANCY <sglancy@us.ibm.com>
Reviewed-by: Sheldon Bailey <baileysh@us.ibm.com>
Reviewed-by: Louis Stermole <stermole@us.ibm.com>
Reviewed-by: Jennifer A. Stofer <stofer@us.ibm.com>
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/80985
Reviewed-by: RAJA DAS <rajadas2@in.ibm.com>
Tested-by: RAJA DAS <rajadas2@in.ibm.com>

src/import/generic/memory/lib/utils/shared/mss_generic_consts.H

@@ -285,6 +285,15 @@ enum nibble_mask
     MASK_NIBBLE1 = 0x0f,
 };
 
+///
+/// @brief throttle_type used to set bulk_pwr_throttls to run POWER or THERMAL throttling
+/// @note OCC will be using the POWER option
+///
+enum class throttle_type
+{
+    POWER = 0,
+    THERMAL = 1,
+};