platformsupport/scenes/opengl: add missing sys/types.h include
This is not automatically pulled in on Musl and without it dev_t is undefined.
Fixes b0f75a90 (comment 1031877)
CC @zamundaaa
This is not automatically pulled in on Musl and without it dev_t is undefined.
Fixes b0f75a90 (comment 1031877)
CC @zamundaaa