(TARGET_SWITCHES): Add -mminimal-toc and -mno-minimal-toc.
(ELIMINABLE_REGS): Add elimination for r30.
(CAN_ELIMINATE): Add case for r30.
(INITIAL_ELIMINATION_OFFSET): Add case for r30.
(toc_section): When TARET_MINIMAL_TOC, initialize toc_table.

From-SVN: r5219