Additional fixes needed, including sonic-net#8472

Author: judyjoseph

platform/broadcom/saibcm-modules/debian/opennsl-modules.install

@@ -2,6 +2,5 @@ systems/linux/user/x86-smp_generic_64-2_6/linux-bcm-knet.ko lib/modules/5.10.0-8
 systems/linux/user/x86-smp_generic_64-2_6/linux-kernel-bde.ko lib/modules/5.10.0-8-2-amd64/extra
 systems/linux/user/x86-smp_generic_64-2_6/linux-user-bde.ko lib/modules/5.10.0-8-2-amd64/extra
 systems/linux/user/x86-smp_generic_64-2_6/linux-knet-cb.ko lib/modules/5.10.0-8-2-amd64/extra
-systems/linux/user/x86-smp_generic_64-2_6/linux-bcm-ptp-clock.ko lib/modules/5.10.0-8-2-amd64/extra
 systemd/opennsl-modules.service lib/systemd/system
 sdklt/linux/bde/linux_ngbde.ko lib/modules/5.10.0-8-2-amd64/extra

platform/broadcom/saibcm-modules/systems/linux/kernel/modules/bcm-knet/bcm-knet.c

@@ -6755,6 +6755,7 @@ bkn_init_ndev(u8 *mac, char *name)
         dev->mtu = rx_buffer_size;
     }
 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,10,0))
+    dev->min_mtu = 68;
     dev->max_mtu = rx_buffer_size;
 #endif