textproc/py-qt5-xml:

• Install python bytecode to avoid build errors in ports depending on it [1]

devel/py-qt[4|5]-core:

• Fix python bytecode destdir location

Reported by: yuri (via freebsd-ports mailing list) [1]
Reviewed by: antoine, tcberner
Differential Revision: https://reviews.freebsd.org/D14586