Comment 65 for bug 1788997

I also tested last kernel from mainline (following #25 & #26 ,just for confirmation...)
[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.19
modinfo rtl8723be says:
filename: /lib/modules/4.19.0-041900-generic/kernel/drivers/net/wireless/realtek/rtlwifi/rtl8723be/rtl8723be.ko
firmware: rtlwifi/rtl8723befw_36.bin
firmware: rtlwifi/rtl8723befw.bin
srcversion: CF0CBB2F4446A615D0ABCBE

similarily with comment #58 wifi works out of the box (no ant_sel)
it works also fine with ant_sel=0 (supposed to be equivalent)
it works also fine with ant_sel=1
does not work with ant_sel=2
like for comment #53, the working ant_sel changed compared to reference kernel 4.15.0-32