[kernel][kservice] add RT_WEAK for several functions
[kernel][kservice] add RT_WEAK for several functions

ArdaFu/rt-thread,RT-Thread/rt-thread,hezlog/rt-thread,geniusgogo/rt-thread,weety/rt-thread,nongxiaoming/rt-thread,weety/rt-thread,armink/rt-thread,geniusgogo/rt-thread,hezlog/rt-thread,ArdaFu/rt-thread,armink/rt-thread,weety/rt-thread,RT-Thread/rt-thread,armink/rt-thread,RT-Thread/rt-thread,hezlog/rt-thread,hezlog/rt-thread,geniusgogo/rt-thread,armink/rt-thread,RT-Thread/rt-thread,nongxiaoming/rt-thread,armink/rt-thread,geniusgogo/rt-thread,nongxiaoming/rt-thread,RT-Thread/rt-thread,nongxiaoming/rt-thread,ArdaFu/rt-thread,weety/rt-thread,geniusgogo/rt-thread,nongxiaoming/rt-thread,weety/rt-thread,weety/rt-thread,RT-Thread/rt-thread,ArdaFu/rt-thread,geniusgogo/rt-thread,nongxiaoming/rt-thread,geniusgogo/rt-thread,armink/rt-thread,hezlog/rt-thread,armink/rt-thread,weety/rt-thread,RT-Thread/rt-thread,nongxiaoming/rt-thread,ArdaFu/rt-thread,ArdaFu/rt-thread,ArdaFu/rt-thread,hezlog/rt-thread,hezlog/rt-thread