etnaviv: Replace bitwise OR with logical OR

The test here is testing whether either variable is non-zero.
While currently the test works fine, it's fragile. Replace it
with logical OR to avoid the fragility.

Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

src/gallium/drivers/etnaviv/etnaviv_shader.c

@@ -212,7 +212,7 @@ etna_link_shaders(struct etna_context *ctx, struct compiled_shader_state *cs,
    cs->ps_inst_mem_size = fs->code_size;
    cs->PS_INST_MEM = fs->code;
 
-   if (vs->needs_icache | fs->needs_icache) {
+   if (vs->needs_icache || fs->needs_icache) {
       /* If either of the shaders needs ICACHE, we use it for both. It is
        * either switched on or off for the entire shader processor.
        */