glsl: Make sure row-major array-of-structure get correct layout

glsl: Make sure row-major array-of-structure get correct layout

Whether or not the field is row-major (because it might be a bvec2 or
something) does not affect the array itself.  We need to know whether an
array element in its entirety is row-major.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=83506
Cc: mesa-stable@lists.freedesktop.org