cc3200/mods/modussl: Fix ca_certs arg validation in mod_ssl_wrap_socket.
cc3200/mods/modussl: Fix ca_certs arg validation in mod_ssl_wrap_socket.

Commit a0d97fe40872b46872657bedc0e47cfd704c59aa changed the argument index
of ca_certs but missed updating one of the references to the new index.

trezor/micropython,pfalcon/micropython,MrSurly/micropython,tobbad/micropython,adafruit/circuitpython,adafruit/circuitpython,henriknelson/micropython,pfalcon/micropython,selste/micropython,MrSurly/micropython,MrSurly/micropython,selste/micropython,pfalcon/micropython,pozetroninc/micropython,henriknelson/micropython,henriknelson/micropython,MrSurly/micropython,tobbad/micropython,adafruit/circuitpython,pozetroninc/micropython,pramasoul/micropython,pramasoul/micropython,henriknelson/micropython,pramasoul/micropython,tobbad/micropython,adafruit/circuitpython,tobbad/micropython,trezor/micropython,bvernoux/micropython,pramasoul/micropython,selste/micropython,adafruit/circuitpython,kerneltask/micropython,trezor/micropython,selste/micropython,pozetroninc/micropython,pozetroninc/micropython,kerneltask/micropython,kerneltask/micropython,tobbad/micropython,bvernoux/micropython,kerneltask/micropython,pfalcon/micropython,bvernoux/micropython,bvernoux/micropython,pfalcon/micropython,trezor/micropython,pozetroninc/micropython,bvernoux/micropython,MrSurly/micropython,pramasoul/micropython,selste/micropython,adafruit/circuitpython,kerneltask/micropython,henriknelson/micropython,trezor/micropython