Add Electrolux YKR-H/531E as a supported device (#1981)

Fixes #1980

Author: crankyoldgit

src/ir_Electra.h

@@ -14,6 +14,7 @@
 //   Brand: Centek,  Model: SCT-65Q09 A/C
 //   Brand: Centek,  Model: YKR-P/002E remote
 //   Brand: AEG,  Model: Chillflex Pro AXP26U338CW A/C
+//   Brand: Electrolux,  Model: YKR-H/531E A/C
 
 #ifndef IR_ELECTRA_H_
 #define IR_ELECTRA_H_