meminfo: Change size suffix to comply with iec, make it parseable with numfmt.

Re-factor to allow for future format flexibility
Add locale-specific large number thousand separator

Change-Id: If4b7c958b5f5fb7094dd4c10b4532e156e983935
Signed-off-by: Sasha Levitskiy <sanek@google.com>
1 file changed