PM / Sleep: User space wakeup sources garbage collector Kconfig option

Make it possible to configure out the user space wakeup sources
garbage
collector for debugging and default Android builds.

Change-Id:
I85ca6caa92c8e82d863f0fa58d8861b5571c1b4a
Signed-off-by: Rafael J.
Wysocki <rjw@sisk.pl>
Acked-by: Arve Hjonnevag
<arve@android.com>
Git-commit: 4e585d2
Git-repo:
git://codeaurora.org/kernel/msm.git
Signed-off-by: Anurag Singh
<anursing@codeaurora.org>

idea is taken here -
https://github.com/rmbq/android_kernel_htc_msm8960/commit/83a5a920035bcd24027ec4af7e6e4bb4f4ffb983