meson: docs: use libva_version over project_version()

We use some unorthodox handling of the version - we suffix a "pre1" or a
fourth digit in the meson case to indicate that. The top-level
meson.build already swaps the digit - saving that as liva_version
variable.

Use the variable, otherwise the docs will list the wrong version.

Signed-off-by: Emil Velikov <[email protected]>

Author: evelikov

doc/meson.build

@@ -34,7 +34,7 @@ foreach h : libva_headers_doc
 endforeach
 
 config = configuration_data()
-config.set('PACKAGE_VERSION', meson.project_version())
+config.set('PACKAGE_VERSION', libva_version)
 config.set('VA_HEADER_DIR', headerdir)
 config.set('VA_HEADER_FILES', headers)
 config.set('VA_HTML_FOOTER', footer)