Sepolicy: Give system server fd rights to perfprofd

So that perfprofd can send larger packets to dropbox.

Follow-up of commit 3fa95acb.

(cherry picked from commit c9df8437)

Bug: 73175642
Test: m
Test: manual
Merged-In: I88d1f83962243589909ff1ce3d02195e7c494256
Change-Id: I88d1f83962243589909ff1ce3d02195e7c494256