Kconfig: Add menu choice option to reclaim virtual memory

Add menu choice options for reclaiming virtual
memory belonging to any subsystem expected to have
a lifetime of the entire system. By default virtual
memory is not reclaimed.

Change-Id: I1b8a1492062bb9532700122878618989e5148647
Signed-off-by: Neeti Desai <neetid@codeaurora.org>
Signed-off-by: Susheel Khiani <skhiani@codeaurora.org>