Android: gallium_dri: pass dri.sym to linker

Android: gallium_dri: pass dri.sym to linker

Pass the dri.sym version script to the linker. This ensures only
explicitly exported symbols are exported and shrinks the library by up
to 60KB.

HAVE_DLADDR also needs to be set so that __driDriverExtensions is defined.

We need to pass "--undefined-version" because the Android build system
sets --no-undefined-version by default and we get an error on
driver specific symbols if those drivers are disabled without the option.

Suggested-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>