Add shstrtab name in tccelf.c
Add shstrtab name in tccelf.c

Last commit removed shstrtab which make gdb/readelf unhappy.

mirror/tinycc,mingodad/tinycc,mirror/tinycc,mingodad/tinycc,mirror/tinycc,mingodad/tinycc,mirror/tinycc,mingodad/tinycc