Update libaddrxlat version information

Commit 25cfbe2 ("Add PTE mask
page table translation parameter") modified the library ABI in a
backwards-incompatible way. Let's bump the version now rather than
at release time.

This allows to install an unreleased git build alongside the last
released version.

Signed-off-by: Petr Tesarik <ptesarik@suse.com>

src/addrxlat/Makefile.am

@@ -35,7 +35,7 @@ libaddrxlat_la_SOURCES = \
 	s390x.c \
 	x86_64.c
 
-libaddrxlat_la_LDFLAGS = -version-info 1:0:0
+libaddrxlat_la_LDFLAGS = -version-info 2:0:0
 
 if HAVE_LD_VERSION_SCRIPT
 libaddrxlat_la_LDFLAGS += -Wl,--version-script=$(srcdir)/libaddrxlat.map