Revert "package/domoticz: drop boost date-time dependency"

This reverts commit 4b4d98e2c5165c3121e670192970fc909cae6d8a as
Boost::date_time is still used by domoticz (in pmain/Scheduler.cpp and
push/BasePush.cpp)

Fixes:
 - http://autobuild.buildroot.org/results/493a2e93fe6121f118293a268f986ee51009b7e8

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/domoticz/Config.in

@@ -11,6 +11,7 @@ config BR2_PACKAGE_DOMOTICZ
 	depends on BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS # boost-thread
 	depends on !BR2_TOOLCHAIN_HAS_GCC_BUG_64735 # exception_ptr
 	select BR2_PACKAGE_BOOST
+	select BR2_PACKAGE_BOOST_DATE_TIME
 	select BR2_PACKAGE_BOOST_SYSTEM
 	select BR2_PACKAGE_BOOST_THREAD
 	select BR2_PACKAGE_CEREAL