freedreno/a2xx: silence missing case 'SHADER_COMPUTE' warning (v2)

v2: no need for break after an unreachable (Matt Turner)

Signed-off-by: Francesco Ansanelli <francians@gmail.com>
Signed-off-by: Rob Clark <robdclark@gmail.com>

src/gallium/drivers/freedreno/a2xx/disasm-a2xx.c

@@ -111,6 +111,8 @@ static void print_export_comment(uint32_t num, enum shader_t type)
 		case 0:  name = "gl_FragColor"; break;
 		}
 		break;
+	case SHADER_COMPUTE:
+		unreachable("not reached");
 	}
 	/* if we had a symbol table here, we could look
 	 * up the name of the varying..