This finds our outer git tree and that version information breaks
determinism of this recipe. Disable it.

RP 2020/2/6

Upstream-Status: Pending
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

Index: libinput-1.14.3/meson.build
===================================================================
--- libinput-1.14.3.orig/meson.build
+++ libinput-1.14.3/meson.build
@@ -387,7 +387,7 @@ pkgconfig.generate(
 	libraries : lib_libinput
 )
 
-git_version_h = vcs_tag(command : ['git', 'describe'],
+git_version_h = vcs_tag(command : ['false'],
 			fallback : 'unknown',
 			input : 'src/libinput-git-version.h.in',
 			output :'libinput-git-version.h')