pulseaudio: enable for bluez5 a2dp support

This patch provides support for pulseaudio
initialization and systemd support
i.e. pulseaudio.service

It is required to connect BT headset, a2dp
support for bluez provided by pulseaudio.

JIRA: SB-4164

Signed-off-by: Shrikant Bobade <Shrikant_Bobade@mentor.com>
bluez5: enable sysvinit support

This patch provides sysvinit support
for bluetooth.

JIRA: SB-4164

Signed-off-by: Shrikant Bobade <Shrikant_Bobade@mentor.com>
pulseaudio: add to pkg-group base

Add pulseaudio to support
BT headset connect(a2dp).

JIRA: SB-4164

Signed-off-by: Shrikant Bobade <Shrikant_Bobade@mentor.com>