samsung-modem-mgr: add libsamsung-ipc dependency, exclude from world

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
wpa-supplicant: remove bbappend with PRINC only

* wpa-supplicant was upgraded to 2.0 in oe-core

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