clock44xx_data.c: Fix 'Log Spam: Could not find divisor for target m6x2 --- Referring to this dmesg entry: <3>[  738.842407,0] clock: Could not find divisor for target rate 0 for clock dpll_core_m6x2_ck parent dpll_core_x2_ck

<3>[  738.843536,0] clock: Could not find divisor for target rate -1 for clock dpll_core_m6x2_ck parent dpll_core_x2_ck