libbonobo: fix QA warnings in packaging

* fixes:
libbonobo-2.24.3: non -staticdev package contains static .a library: libbonobo-dev path '/work/armv7a-vfp-neon-oe-linux-gnueabi/libbonobo/2.24.3-r0/packages-split/libbonobo-dev/usr/lib/orbit-2.0/Bonobo_module.a'
libbonobo-2.24.3: non -staticdev package contains static .a library: libbonobo-dev path '/work/armv7a-vfp-neon-oe-linux-gnueabi/libbonobo/2.24.3-r0/packages-split/libbonobo-dev/usr/lib/bonobo/monikers/libmoniker_std_2.a'

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>