Greetings!
It appears that model of laptop comes with either an HDD or an m.2 SSD, which means that it should have support for both. I am not sure if any came with both straight away, but generally a company will use the same motherboard for the same model of laptop even if there are different features offered.
Here is a picture of the motherboard from your laptop showing an m.2 drive installed to the left of the HDD (center bottom):
https/3.bp.blogspot.com/-VYNKQJYU9sg/Vtu71Z_cOXI/AAAAAAAAMOo/Voc9CdRn98c/s1600/GL62_2.jpg
As far as I can see you can have both
Hope this helps!