et: fi: move spellingStress from code to language configuration

espeak-ng-data/lang/urj/et

 stressRule 0
 
 intonation 3
+spellingStress

espeak-ng-data/lang/urj/fi

 stressOpt 1 2 4 6 // (S_NO_DIM + S_FINAL_DIM = S_FINAL_DIM_ONLY), S_FINAL_NO_2, S_2_TO_HEAVY
 stressRule 0
 
-intonation 3
+intonation 3
+spellingStress

src/libespeak-ng/tr_languages.c

 
 		tr->langopts.numbers = NUM_DECIMAL_COMMA | NUM_ALLOW_SPACE | NUM_DFRACTION_2 | NUM_ORDINAL_DOT;
 		SetLetterVowel(tr, 'y');
-		tr->langopts.spelling_stress = true;
 	}
 		break;
 	case L('f', 'r'): // french