Update build configuration

xtoskrnl/CMakeLists.txt

@@ -87,6 +87,7 @@ list(APPEND XTOSKRNL_SOURCE
     ${XTOSKRNL_SOURCE_DIR}/rtl/sha1.cc
     ${XTOSKRNL_SOURCE_DIR}/rtl/slist.cc
     ${XTOSKRNL_SOURCE_DIR}/rtl/string.cc
+    ${XTOSKRNL_SOURCE_DIR}/rtl/time.cc
     ${XTOSKRNL_SOURCE_DIR}/rtl/widestr.cc)
 
 # Set module definition SPEC file