Fixed removal of LE devices on stopping LE scan

Fixed removal of LE devices on stopping LE scan

Issue: LE connect fail with error "Device path not found".

Cause: Device flags are incorrectly updated to 0 on receiving
scan_response data. Later on stopping LE scan, the LE device
is considered non-connectable based on device flag which was
incorrectly updated to 0 during scan_response event and the
device is removed immediately. This causes LE connect to fail
with error "device path not found".

Solution: This patch fixes the issue by checking adv pkt type
before updating the device flag on device found event.

Change-Id: Id86b024dfc6c980780aef6cdda8e6dcc6b150b80
Signed-off-by: Atul Rai <a.rai@samsung.com>