hw/core: skip loading debug on all failures

ELF_LOAD_FAILED is one of many negative return codes we can have. Lets
treat any positive size_t as a success for loading.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20231120150833.2552739-10-alex.bennee@linaro.org>

hw/core/loader.c

@@ -505,7 +505,7 @@ ssize_t load_elf_ram_sym(const char *filename,
                          clear_lsb, data_swab, as, load_rom, sym_cb);
     }
 
-    if (ret != ELF_LOAD_FAILED) {
+    if (ret > 0) {
         debuginfo_report_elf(filename, fd, 0);
     }