[SN2201] remove extra empty lines in the pg_profile_lookup.ini (#11923)

- Why I did it
Remove extra empty lines in the SN2201 pg_profile_lookup.ini to make it aligned with other platforms.
This extra empty line could confuse some test cases which need to parse this file.

Signed-off-by: Kebo Liu <kebol@nvidia.com>

device/mellanox/x86_64-nvidia_sn2201-r0/ACS-SN2201/pg_profile_lookup.ini

@@ -14,7 +14,6 @@
 ## See the License for the specific language governing permissions and
 ## limitations under the License.
 ##
-
 #  PG lossless profiles.
 # speed cable  size   xon    xoff   threshold
     100    5m 49152  19456  29696          0