removed dependencies for baremetal implementation of localtime and added

baremetal entrypoint object for localtime_r

Author: zimirza

libc/src/time/baremetal/CMakeLists.txt

@@ -15,8 +15,12 @@ add_entrypoint_object(
     localtime.cpp
   HDRS
     ../localtime.h
-  DEPENDS
-    libc.hdr.time_macros
-    libc.hdr.types.struct_timespec
 )
 
+add_entrypoint_object(
+  localtime_r
+  SRCS
+    localtime_r.cpp
+  HDRS
+    ../localtime.h
+)