package/fdk-aac: bump to version 2.0.2

Update indentation in hash file (two spaces)

https://github.com/mstorsjo/fdk-aac/releases/tag/v2.0.2



Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>