TF201: Add BOARD_EGL_NEEDS_FNW and BOARD_USE_MHEAP_SCREENSHOT to BoardConfig.mk

Since we are back to the old libs

Change-Id: I923af82572c0cf74abfba6daa25d5771d10c1834
tf700t: libhealthd: fix pluggable status

The board only should report a pluggable status if and only if the status sysfs
reports a valid charging status

Change-Id: I4d71ca280d7d459a1ae15774bd264c228d9d5056
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>
TF201: Remove *perfhud.so

Frameworks/native has flawed logic when it comes to loading old
"egl.cfg" libs. Just a pattern match, which just happens to pick up the
perfhud libs. See:
https://github.com/CyanogenMod/android_frameworks_native/blob/cm-11.0/opengl/libs/EGL/Loader.cpp#L287

Change-Id: I448bc697f8309809c939d898f025b96bca1ffc1b