shaderc: fix the build with glslang 11.1.0

Drop patches:
    * 0001-Fix-the-link-order-of-libglslang-and-libHLSL.patch
      is rejected upstream and is not need when glslang as shared libs.

Update pacthes:
    * 0001-cmake-de-vendor-libs-and-disable-git-versioning.patch
      renamed and refreshed from 0003-cmake-de-vendor-libs-and-disable-git-versioning.patch.

Signed-off-by: Jose Quaresma <quaresma.jose@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>