nvc0/ir: Initialize CodeEmitterNVC0 member progType in constructor.
Fix defect reported by Coverity Scan. Uninitialized scalar field (UNINIT_CTOR) uninit_member: Non-static class member progType is not initialized in this constructor nor in any functions that it calls. Signed-off-by: Vinson Lee <vlee@freedesktop.org> Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu> Part-of: <!11350>