canfestival: comment on musl disable
Based on commit 4d00a4058b9e5 (can-festival: disable on musl) and a previous
fix attempt[1], add a comment explaining why build with musl is disabled.
[1] http://patchwork.ozlabs.org/patch/509731/
Cc: Arnout Vandecappelle <arnout@mind.be>
Cc: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Baruch Siach