smbios-mdr: start 3 smbios instances to support single host machine

The instance 3 is needed for single host machine.
b/418691287#comment11

Fusion-Link:
http://fusion2/a39cb216-5cba-3597-817b-be5910114501

Tested:
https://paste.googleplex.com/4725589967372288

Platforms-Affected: platform15, platform24

Google-Bug-Id: 418691287
Change-Id: I1616e7c36326b068399fcc7f6cf2379104eecc32
Signed-off-by: Jinliang Wang <jinliangw@google.com>
(cherry picked from commit 0de7fda35ce3eed5faf452201d39147a18b02f2c)
diff --git a/recipes-phosphor/smbios/smbios-mdr/0001-Process-smbios-grpc-blob-tranasfer.patch b/recipes-phosphor/smbios/smbios-mdr/0001-Process-smbios-grpc-blob-tranasfer.patch
index 711369f..3ab7a57 100644
--- a/recipes-phosphor/smbios/smbios-mdr/0001-Process-smbios-grpc-blob-tranasfer.patch
+++ b/recipes-phosphor/smbios/smbios-mdr/0001-Process-smbios-grpc-blob-tranasfer.patch
@@ -107,7 +107,7 @@
 +    if (!globalIo) {
 +        return;
 +    }
-+    for (int i = 1; i <= 2; ++i) {
++    for (int i = 1; i <= 3; ++i) {
 +        lg2::info("Posting task for instance {INSTANCE}", "INSTANCE", i);
 +        globalIo->post([i]() {
 +            processSmbiosFile(i);