Add support for `a50`

[Meiguins]

Is your device already requested?

• [X] I have searched the existing issues

Brand

Samsung

Name

Galaxy A50

Device code

Device with code 'a50' is not supported yet.

Model

SM-A505GT

Device images

ROM padrão do celular

Do you own the device and would be willing to test the installer?

• [X] I own the device and am willing to test the installer on it.

Additional context

Tentando instalar uma custom rom