build: Added -UNDEBUG to tools/Android.mk

NDEBUG is defined by default in Android and causes assert(x) to be
defined as void(x). This change ensures that asserts work as
expected in tools.

This flag is already inside tests/Android.mk

Reviewed-by: Oscar Mateo <oscar.mateo@intel.com>
Signed-off-by: Devon Davies <devon.davies@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
1 file changed