Revert "staging: android: lowmemorykiller: Don't count reserved free memory"

This reverts commit 839b7734b132752e6a61a6e2ffac6d4aafefb775.
Revert "staging: android: lowmemorykiller: well-marked debug print"

This reverts commit d62c8fe251a45354a4f5787962d98f4546db9cf7.
Revert "mm, oom: change type of oom_score_adj to short"

This reverts commit b90cdaa6e84ba473bbc65d3627a5eeb0e7b1facb.
MAKEFILE: swap -mfpu=neon for neon-vfpv4 thx jerrylzy

Signed-off-by: poondog <markj338@gmail.com>