You can define reverse order when making charts or tables, but the easier way is to recode the values so you'll have it ready for any analysis you're about to run. Use TRANSFORM>RECODE INTO SAME VARIABLES, select the variable(s) you want to recode and define the values under the OLD AND NEW VALUES.
Code:
RECODE <VARIABLE NAME HERE> (1=5) (2=4) (4=2) (5=1).
EXECUTE.