docs: add sha256 checksums for 11.2.0
docs: add sha256 checksums for 11.2.0

Signed-off-by: Emil Velikov <f20878473f414da183da19ee25c8722cc1d711e4@collabora.com>
(cherry picked from commit e7fb889dcc002f87c316f3cdc6e7907a88c12697)

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler