graphics/waffle: Update to 1.5.2

[dumbbell]

Summary

Beside the update, explicitely enable the x11_egl platform.

[danfe]

Should be fine overall, but has a number of minor style bugs (reported as inline comments).

graphics/waffle/Makefile

19

Options-related knobs are typically expected to be found near the very end of other knobs (right before targets section starts).

22

Why these USE_* knobs are separated from the USES and USE_LDCONFIG above?

24

Is LIBS (vs. LDFLAGS) really correct here? If not, you might consider using USES=localbase instead.

27

These two successive += statements are usually done as one. In this case it looks like it would not even cause the linewrapping.

32

I think this target is superfluous (i.e., stuff in DOCSDIR won't be packaged in docless package (ir)regardless of their presence in staging area).

[dumbbell]

Address @danfe's comments

[dumbbell]

Sort USE* variables and their values