LoongArch: Fixed ABI v1.00 TLS dynamic relocation generation bug

Commit "b67a17aa" modified the logic of allocating dynamic
relocation space for TLS GD/IE, but only modified the logic of
generation dynamic relocations for TLS GD/IE in ABI v2.00. When
linking an object file of ABI v1.00 with bfd ld of ABI v2.00, it
will cause an assertion failure.

Modified the dynamic relocation generation logic of TLS GD/IE
in ABI v1.00 to be consistent with ABI v2.00.