Electro: limit max input current for safety
Electro: limit max input current for safety

+ Max = Max * 95%

BUG=chrome-os-partner:61852
BRANCH=reef
TEST=Run fish tank + youtube + USB 0.9A * 2 +
     TypeC 3A * 1 + empty battery, input current
     from 3.033A become 2.92A

Change-Id: I34563a011915c29972835f7d878cad29045d42f0
Signed-off-by: Ryan Zhang <50a92783d595cae957ab2a2aa8dfe1aa1d9433fd@quantatw.com>
Reviewed-on: https://chromium-review.googlesource.com/427485
Commit-Ready: Benson Leung <998395a8308946159d5d40179d81ad2bfe699e21@chromium.org>
Tested-by: Benson Leung <998395a8308946159d5d40179d81ad2bfe699e21@chromium.org>
Reviewed-by: Benson Leung <998395a8308946159d5d40179d81ad2bfe699e21@google.com>
Reviewed-by: Aaron Durbin <af0622ab041e8b0f8e5819838dcc93898196e71f@chromium.org>
Reviewed-by: Shawn N <5259333ce42e3ace6a73988cec7115ed9d3a661a@chromium.org>

coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec