Fix 5.19 Kernel NVMe CC info issue

Author: nicktehrany

hw/femu/femu.c

@@ -90,6 +90,13 @@ static void nvme_write_bar(FemuCtrl *n, hwaddr offset, uint64_t data, unsigned s
         n->bar.intmc = n->bar.intms;
         break;
     case 0x14:
+        /* If first sending data, then sending enable bit */
+        if (!NVME_CC_EN(data) && !NVME_CC_EN(n->bar.cc) &&
+                !NVME_CC_SHN(data) && !NVME_CC_SHN(n->bar.cc))
+        {
+            n->bar.cc = data;
+        }
+
         if (NVME_CC_EN(data) && !NVME_CC_EN(n->bar.cc)) {
             n->bar.cc = data;
             if (nvme_start_ctrl(n)) {