android: Add system wakeup and sleep keycodes
android: Add system wakeup and sleep keycodes

Signed-off-by: Joel Fernandes <89f39a38232ac523c7644e47b6ca6563177e40b4@google.com>

joelagnel/lisa,mdigiorgio/lisa,credp/lisa,ARM-software/lisa,ARM-software/lisa,bjackman/lisa,credp/lisa,credp/lisa,ARM-software/lisa,arnoldlu/lisa,credp/lisa,mdigiorgio/lisa,ARM-software/lisa,bjackman/lisa,arnoldlu/lisa,joelagnel/lisa