[Mellanox]Integrate hw-mgmt 7.0000.3012 and advance the linux kernel (s…

…onic-net#4193)

* [Mellanox]Integrate hw-mgmt 7.0000.3012

* [sonic-linux-kernel]Advance the submodule head

Advance the sonic-linux-kernel

[sFlow]: Patch to fix skb_over_panic in psample driver (#120)
Added support in the kernel for fullcone 3-tuple unique nat. (#100)
Adding support to compile ARM architecture (#102)
[ixgbe] Support bcm54616s external phy in ixgbe (#122)
Fix i2c ISMT DMA buffer alignment issue (#123)
[mellanox]: Add SN4700 patches. (#126)

platform/mellanox/hw-management.mk

@@ -1,6 +1,6 @@
 # Mellanox HW Management
 
-MLNX_HW_MANAGEMENT_VERSION = 7.0000.2308
+MLNX_HW_MANAGEMENT_VERSION = 7.0000.3012
 
 export MLNX_HW_MANAGEMENT_VERSION