Give ueventd permissions to read /proc/bootconfig

It needs to read parameters that have been moved from /proc/cmdline
to /proc/bootconfig

Test: boot Cuttlefish with 5.10 and 4.19 kernels
Bug: 173815685
Change-Id: I437b76634b7c8e779e32b68cd3043d02f4228be5
1 file changed