Update ion_4.19.h with heap IDs

system/core/libion/original-kernel-headers/linux/ion_4.19.h was
edited manually and the following command was run to generate
system/core/libion/ion_4.19.h

bionic/libc/kernel/tools/clean_header.py
-ksystem/core/libion/original-kernel-headers/linux ion_4.19.h
> system/core/libion/ion_4.19.h

Bug: 140916230
Test: make, ion-unit-tests
Change-Id: I6b66bed7e3b11c5b7e80bb0b937d620510f0e172