clc: Always use spir for 32 bit
What does this MR do and why?
clc: Always uses spir for 32 bit
Fixes unknown target triple
'unknown-unknown-unknown-spirv-unknown-unknown' problem with llvm 17 on
a 32 bit system.
Fixes: 22fa315ee06 ("clc: use spirv triple starting with llvm-17")
Signed-off-by: Christian Gmeiner <cgmeiner@igalia.com>