P2P: Restore P2P_SCAN_SPECIFIC

This reverts commit 3df2f4fe99e18f7fb449477a63d13abb3ad4c891 ('P2P:
Remove unused P2P_SCAN_SPECIFIC') with a modification to fit the current
code base.

Signed-off-by: Daichi Ueura <daichi.ueura@sonymobile.com>
2 files changed