defconfig: version tag 7.6 -> 7.7 -> 7.8 -> 8.0
rcu: jRCU with lazy mode (To reduce RCU memory usage, designed for multi-core CPU)
mali: reset l2 max reads (According to documents, we have a fixed 32kb l2 size.)
mxt224e: fix threshold on charging (namely, fixed touch issues at the bottom on charging)
ux500 pcm: Proper#ed max pcm buffer rate
sysctl: tweak vm params (supports to fix memory leaks)