Change name of constant.

THOT_DEC_SW_MODEL_TYPE constant is changed to
THOT_DEC_SWM_TYPE.
    Change name of constant.

    THOT_SW_MODEL_TYPE constant is changed to
    THOT_SWM_TYPE.
Change in constant names.

Constants containing SW_MODELS_CURR_SWM string are renamed to
CURR_SWM.