gcab: ignore buildpaths error from sources

gcab-src has some meson generated files which embed
absolute paths from build environment. meson seems
ot do this on purpose to fix other issues.

Ignored those issues for now.

Signed-off-by: Mikko Rapeli <mikko.rapeli@linaro.org>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
(cherry picked from commit db91757)
Signed-off-by: Armin Kuster <akuster808@gmail.com>

meta-oe/recipes-gnome/gcab/gcab_1.6.bb

@@ -22,3 +22,6 @@ PACKAGECONFIG[nls] = "-Dnls=true,-Dnls=false"
 PACKAGECONFIG[tests] = "-Dtests=true -Dinstalled_tests=true,-Dtests=false -Dinstalled_tests=false"
 
 BBCLASSEXTEND = "native"
+
+# meson embeds absolute paths to generated files on purpose
+INSANE_SKIP:gcab-src += "buildpaths"