glib-compat.h: change assert to g_assert
glib-compat.h: change assert to g_assert

include/glib-compat.h defines a bunch of functions based on glib primitives,
and uses assert() without including assert.h.  Replace assert() with
g_assert() to make the file more self-contained, and to fix compilation
breakage after 28507a415a9b1e.

Reported-by: Laurent Desnogues <47357a2bc994ed28afb5eba9cc12f49f585d27e6@gmail.com>
Signed-off-by: Michael Tokarev <389bd06664b699d49ce291f515b98373073ad5f4@tls.msk.ru>
Tested-by: Laurent Desnogues <47357a2bc994ed28afb5eba9cc12f49f585d27e6@gmail.com>

elmarco/libcacard,SPICE/libcacard,SPICE/libcacard,elmarco/libcacard