Fix : Bluetooth log is not removed on user binary

Fix : Bluetooth log is not removed on user binary

[Problem] Bluetooth log is not deleted on user binary.

[Cause & Measure] Directory owner / group is modified manually. It
 causes inconsistency with system setting. The base directory which is
 passed from dump daemon has setuid bit. So the files and directories
 created by bluetooth script have the same group id to the base
 directory. So bluetooth script doesn't need to change ownership of
 files and directories. This patch removes chown part from script and
 adds write permission to group.

[Checking Method] *#9900# on User binary

Change-Id: Ibfde6fd7a37483dcdd3b0c4f8872dbb436095870