WaffleDefineCompilerFlags: FindPkgConfig variables are lists
In case of a list, cmake uses ';' as an element separator. When the list is used as a string, as compiler CFLAGS, the ';' ends up being picked up by the shell as an 'end of command'.
Iterate through the list and use ' ' as element separator.
Signed-off-by: Adrian Negreanu adrian.negreanu@nxp.com