PKGBUILD update for liburcu 0.8.1

Signed-off-by: Christian Babeux <christian.babeux@0x80.ca>
PKGBUILD update for lttng-ust 2.3.1

Signed-off-by: Christian Babeux <christian.babeux@0x80.ca>
PKGBUILD update for lttng-modules 2.3.3

Signed-off-by: Christian Babeux <christian.babeux@0x80.ca>