Encapsulate changes under FIX_1737_FIX_867_CLDFB_NRG_SCALE. Fix additional...

Encapsulate changes under FIX_1737_FIX_867_CLDFB_NRG_SCALE. Fix additional scaling issues found. Use L_norm_arr instead of getScaleFactor32 for CLDFB normalization because getScaleFactor32 returns 0 for zero signal causing scale values out of range which lead to a crash.