Revert "dhd: tweak timeouts"

This reverts commit ab1c8b8be03030ef1836a01a3611738b1cb096b6.
Revert "revert dtim"

This reverts commit ab92784d32f1fc486e2377a68ac9002925c220fb.
Revert "fix"

This reverts commit 939c3d2e6cf68850f372006b0cb1977814533d84.
Revert "dhd: reduce wakelock time"

This reverts commit cf14b3d3c74dc6239656b707cdcd309fdffab051.