depends: Consistent use of package variable

All other mk files use the package variable consistently except for the two instances here, which have always been here, since depends was introduced in 0.10.

Author: Bushstar

depends/packages/boost.mk

@@ -29,11 +29,11 @@ $(package)_cxxflags_android=-fPIC
 endef
 
 define $(package)_preprocess_cmds
-  echo "using $(boost_toolset_$(host_os)) : : $($(package)_cxx) : <cxxflags>\"$($(package)_cxxflags) $($(package)_cppflags)\" <linkflags>\"$($(package)_ldflags)\" <archiver>\"$(boost_archiver_$(host_os))\" <striper>\"$(host_STRIP)\"  <ranlib>\"$(host_RANLIB)\" <rc>\"$(host_WINDRES)\" : ;" > user-config.jam
+  echo "using $($(package)_toolset_$(host_os)) : : $($(package)_cxx) : <cxxflags>\"$($(package)_cxxflags) $($(package)_cppflags)\" <linkflags>\"$($(package)_ldflags)\" <archiver>\"$($(package)_archiver_$(host_os))\" <striper>\"$(host_STRIP)\"  <ranlib>\"$(host_RANLIB)\" <rc>\"$(host_WINDRES)\" : ;" > user-config.jam
 endef
 
 define $(package)_config_cmds
-  ./bootstrap.sh --without-icu --with-libraries=$(boost_config_libraries)
+  ./bootstrap.sh --without-icu --with-libraries=$($(package)_config_libraries)
 endef
 
 define $(package)_build_cmds