clang-tidy: Fix bugprone-branch-clone diagnostic

```
/usr/bin/clang-tidy -checks=-*, bugprone-branch-clone -export-fixes /tmp/tmplugxq7wz/tmpfx50asij.yaml -p=build /mnt/host/andrew/src/openbmc/libpldm/src/firmware_update.c
../src/firmware_update.c:245:49: error: repeated branch in conditional chain [bugprone-branch-clone,-warnings-as-errors]
            aux_state_status == PLDM_FD_GENERIC_ERROR) {
                                                       ^
../src/firmware_update.c:247:3: note: end of the original
        } else if (aux_state_status >=
         ^
../src/firmware_update.c:249:66: note: clone 1 starts here
                   aux_state_status <= PLDM_FD_VENDOR_DEFINED_STATUS_CODE_END) {
                                                                               ^
```

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Change-Id: I7867b099bafb92da9547288b886273c470e1b81f
diff --git a/src/firmware_update.c b/src/firmware_update.c
index bd6ed9a..c5a213f 100644
--- a/src/firmware_update.c
+++ b/src/firmware_update.c
@@ -242,11 +242,9 @@
 {
 	if (aux_state_status == PLDM_FD_AUX_STATE_IN_PROGRESS_OR_SUCCESS ||
 	    aux_state_status == PLDM_FD_TIMEOUT ||
-	    aux_state_status == PLDM_FD_GENERIC_ERROR) {
-		return true;
-	} else if (aux_state_status >=
-		       PLDM_FD_VENDOR_DEFINED_STATUS_CODE_START &&
-		   aux_state_status <= PLDM_FD_VENDOR_DEFINED_STATUS_CODE_END) {
+	    aux_state_status == PLDM_FD_GENERIC_ERROR ||
+	    (aux_state_status >= PLDM_FD_VENDOR_DEFINED_STATUS_CODE_START &&
+	     aux_state_status <= PLDM_FD_VENDOR_DEFINED_STATUS_CODE_END)) {
 		return true;
 	}