depends: fix monero binaries Boost linking errors

It would try to link against host system Boost libs when building outside gitian. Tested with x86_64-linux-gnu target.

contrib/depends/toolchain.cmake.in

@@ -40,14 +40,14 @@ SET(Protobuf_LIBRARY @prefix@/lib/libprotobuf.a CACHE FILEPATH "Protobuf library
 SET(ZMQ_INCLUDE_PATH @prefix@/include)
 SET(ZMQ_LIB @prefix@/lib/libzmq.a)
 
-SET(BOOST_IGNORE_SYSTEM_PATHS_DEFAULT ON)
-SET(BOOST_IGNORE_SYSTEM_PATH ON)
+SET(Boost_IGNORE_SYSTEM_PATH ON)
 SET(BOOST_ROOT @prefix@)
+SET(BOOST_INCLUDEDIR @prefix@/include)
 SET(BOOST_LIBRARYDIR @prefix@/lib)
-SET(BOOST_IGNORE_SYSTEM_PATHS_DEFAULT OFF)
-SET(BOOST_NO_SYSTEM_PATHS TRUE)
-SET(BOOST_USE_STATIC_LIBS TRUE)
-SET(BOOST_USE_STATIC_RUNTIME TRUE)
+SET(Boost_IGNORE_SYSTEM_PATHS_DEFAULT OFF)
+SET(Boost_NO_SYSTEM_PATHS ON)
+SET(Boost_USE_STATIC_LIBS ON)
+SET(Boost_USE_STATIC_RUNTIME ON)
 
 SET(OpenSSL_DIR @prefix@/lib)
 SET(ARCHITECTURE @arch@)