msm: wlan: db.txt: enable mid 5GHz channels of WORLD reg domain

Patch enables the mid 5GHz channels for passive scanning on
WORLD regulatory domain.

Change-Id: I0e5b2a04afaa39b94a05e072ec1979e7d9ca0d14
CRs-Fixed: 614247
Signed-off-by: Manjunathappa Prakash <prakashpm@codeaurora.org>