package/matchbox-keyboard: add libpng dependency
libpng is a mandatory dependency since bump to version 0.1.1 in commit
e2511d88e8 and
https://git.yoctoproject.org/matchbox-keyboard/commit/?id=1d7c5f1e0ad736205151c0df5aa738f942bd3e97:
checking for PNG... no
configure: error: Package requirements (libpng) were not met:
Package 'libpng', required by 'virtual:world', not found
Fixes:
- http://autobuild.buildroot.org/results/4495f0720d7053a52ff8fef82d18a70a6f20c66b
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
(cherry picked from commit a63fbb0d97)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
534716254c