gdb/testsuite: add text_segment option to gdb_compile

gdb/testsuite: add text_segment option to gdb_compile

LLVM's lld linker doesn't have the "-Ttext-segment" option, but
"--image-base" can be used instead.

To centralize the logic of checking which option is supported, add the
text_segment option to gdb_compile.  Change tests that are currently
using -Ttext-segment to use that new option instead.

This patch fixes only compilation error, for example:

Before:

    $ make check TESTS="gdb.base/jit-elf.exp" RUNTESTFLAGS="CC_FOR_TARGET=clang LDFLAGS_FOR_TARGET=-fuse-ld=ld"
    Running /home/simark/src/binutils-gdb/gdb/testsuite/gdb.base/jit-elf.exp ...
    gdb compile failed, clang-13: warning: -Xlinker -Ttext-segment=0x7000000: 'linker' input unused [-Wunused-command-line-argument]

After:

    $ make check TESTS="gdb.base/jit-elf.exp" RUNTESTFLAGS="CC_FOR_TARGET=clang LDFLAGS_FOR_TARGET=-fuse-ld=ld"
    Running /home/simark/src/binutils-gdb/gdb/testsuite/gdb.base/jit-elf.exp ...
    FAIL: gdb.base/jit-elf.exp: one_jit_test-1: continue to breakpoint: break here 1
    FAIL: gdb.base/jit-elf.exp: one_jit_test-1: continue to breakpoint: break here 2
    FAIL: gdb.base/jit-elf.exp: one_jit_test-2: continue to breakpoint: break here 1
    FAIL: gdb.base/jit-elf.exp: one_jit_test-2: info function ^jit_function
    FAIL: gdb.base/jit-elf.exp: one_jit_test-2: continue to breakpoint: break here 2
    FAIL: gdb.base/jit-elf.exp: attach: one_jit_test-2: continue to breakpoint: break here 1
    FAIL: gdb.base/jit-elf.exp: attach: one_jit_test-2: break here 1: attach
    FAIL: gdb.base/jit-elf.exp: PIE: one_jit_test-1: continue to breakpoint: break here 1
    FAIL: gdb.base/jit-elf.exp: PIE: one_jit_test-1: continue to breakpoint: break here 2

                    === gdb Summary ===

    # of expected passes            26
    # of unexpected failures        9

Change-Id: I3678c5c9bbfc2f80671698e28a038e6b3d14e635