e2fsprogs: fix quota parallel build issue

Missing quota.o dependencies, patch already upstream. Fixes:
http://autobuild.buildroot.net/results/aac/aac7b4e3becfc0db5e50ff45d28376f35a9131af/



Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>