[FIX] sap.m.TextArea: Counter text changed
[FIX] sap.m.TextArea: Counter text changed

Change-Id: Iefe26ef932b0006d2b8c0c3ef2c5728bb091ecce
BCP: 1880059999

cschuff/openui5,SAP/openui5,SAP/openui5,cschuff/openui5,SAP/openui5,cschuff/openui5,SAP/openui5