Revert "net: wireless: bcmdhd: no need for power mode anymore"

This reverts commit 10db23ab289ff5545130155e60ec6518db27fed8.
Revert "net: wireless: bcmdhd: Enable SUPPORT_PM2_ONLY mode"

This reverts commit 370efc8b3caed487b02f95ef415fc8e0a66b0083.
Revert "net: wireless: bcmdhd: Add SUPPORT_PM2_ONLY option"

This reverts commit 956f915304d686d7b3748cab8890b725572761ce.
drivers:net:wireless:bcmdhd: cleanup after revert

Signed-off-by: Dan Trifan <jimsth@gmail.com>