Apply post-1.19.3 patches, bump version to 1.19.4

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Signed-off-by: Tanguy Pruvot <tanguy.pruvot@gmail.com>

Change-Id: I39ec4b347a7434d6837cf71bebe28ef36db98d55
12 files changed