[Mellanox] Update SN2201 sai profile and platform reboot script (#10978)

- Why I did it
1. SN2201 sai profile needs to be updated according to the latest hardware.
2. In the reboot script, need to use the common symbol link of the power_cycle sysfs instead of directly accessing it due to SN2201 sysfs is different than other platforms.
3. echo 1 > $SYSFS_PWR_CYCLE will trigger the reboot immediately, the following sleep 3 and echo 0 > $SYSFS_PWR_CYCLE will never be executed, can be removed.

- How I did it
1. Replace the SN2201 sai profile with the latest one.
2. In the platform_reboot script, replace the direct sysfs path with the symbol link path.
3. Remove the redundant code from platform_reboot

- How to verify it
Perform reboot on all the Nvidia platforms, and check all can be rebooted successfully.

Signed-off-by: Kebo Liu <[email protected]>

device/mellanox/x86_64-mlnx_msn2700-r0/platform_reboot

@@ -5,7 +5,7 @@ declare -r EXIT_ERROR="1"
 
 declare -r PENDING_COMPONENT_FW="/usr/bin/install-pending-fw.py"
 declare -r FW_UPGRADE_SCRIPT="/usr/bin/mlnx-fw-upgrade.sh"
-declare -r SYSFS_PWR_CYCLE="/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/pwr_cycle"
+declare -r SYSFS_PWR_CYCLE="/var/run/hw-management/system/pwr_cycle"
 
 FORCE_REBOOT="no"
 
@@ -24,8 +24,6 @@ function SafePwrCycle() {
     sync ; sync
     umount -fa > /dev/null 2&>1
     echo 1 > $SYSFS_PWR_CYCLE
-    sleep 3
-    echo 0 > $SYSFS_PWR_CYCLE
 }
 
 ParseArguments "$@"