[SeaBIOS] Building with AddressSanitizer (ASAN)

[Paul Menzel]

Dear SeaBIOS folks,

Is it possible to build SeaBIOS with AddressSanitizer support?

Adding `-fsanitize=address` to the CFLAGS, the build with gcc (Debian
7.3.0-5) 7.3.0 fails with the error `ld:out/romlayout16.lds:11: syntax
error`.

Please find the configuration and the file attached.

Thanks,

Paul