sahara: Ignore DONE response code

The DONE message contains a return code denoting if the firmware is done
(1) requesting files from the host, or if there are more requests to
come (0). Unfortunately on some platforms the ROM code sends 0
regardless, so we just have to assume that we're done.

This assumes that there is only ever one image to transfer.

Reported-by: Kirill Kapranov <kkapra@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

sahara.c

@@ -198,7 +198,6 @@ int sahara_run(int fd, char *prog_mbn)
 	char buf[4096];
 	char tmp[32];
 	bool done = false;
-	int ret;
 	int n;
 
 	while (!done) {
@@ -235,9 +234,8 @@ int sahara_run(int fd, char *prog_mbn)
 			sahara_eoi(fd, pkt);
 			break;
 		case 6:
-			ret = sahara_done(fd, pkt);
-			if (ret)
-				done = true;
+			sahara_done(fd, pkt);
+			done = true;
 			break;
 		case 0x12:
 			sahara_read64(fd, pkt, prog_mbn);