package/ofono: bump to version 1.29

package/ofono: bump to version 1.29

Backport upstream patch which adds explicit_bzero() autoconf detection,
which fixes br-arm-cortex-a9-glibc and br-arm-full-static build:

In file included from ell/random.c:34:
ell/missing.h:59:20: error: static declaration of ‘explicit_bzero’ follows non-static declaration
 static inline void explicit_bzero(void *s, size_t n)
                    ^~~~~~~~~~~~~~
In file included from ./ell/util.h:26,
                 from ell/private.h:26,
                 from ell/random.c:33:
/home/pvorel/br-test-pkg/br-arm-cortex-a9-glibc/host/arm-buildroot-linux-gnueabihf/sysroot/usr/include/string.h:435:13: note: previous declaration of ‘explicit_bzero’ was here
 extern void explicit_bzero (void *__s, size_t __n) __THROW __nonnull ((1));
             ^~~~~~~~~~~~~~

Signed-off-by: Petr Vorel <petr.vorel@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>