feat: Region-based tuner support for P5en

[arunkarthik-akkart]

This patch has the below changes for the region based tuner for p5en

• Enable region based tuner for P5en.
• add vertices for region based tuner for all_reduce bitmask 0x0 and 0x7.
• add vertices for region based tuner for all_gather bitmask 0x7.
• add vertices for region based tuner for reduce_scatter bitmask 0x7.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[sunkuamzn]

bot:aws:retest

[a-szegel]

bot:aws:retest ... infra issues, cluster disk space full

[a-szegel]

bot:aws:retest