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#### Why I did it
UEFI boot support for Arista platforms which support UEFI boot.

##### Work item tracking
- Microsoft ADO **(number only)**:

#### How I did it
 Added Arista driver packages to ONIE image. Added required change in initramfs to create necessary partitions and extract binaries at the initial boot from Aboot.
#### How to verify it
verified that sonic booted up properly with Arista platform which support UEFI boot.

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#### Which release branch to backport (provide reason below if selected)

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- [ ] 202305
- [ ] 202311
- [ ] 202405
- [ ] 202411
- [ ] 202505
- [x] 202511

#### Tested branch (Please provide the tested image version)

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- [x] 20201231.100
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- [ ] <!-- image version 1 -->
- [ ] <!-- image version 2 -->

#### Description for the changelog
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 Ensure to add label/tag for the feature raised. example - PR#2174 under sonic-utilities repo. where, Generic Config and Update feature has been labelled as GCU.
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#### Link to config_db schema for YANG module changes
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Signed-off-by: Sonic Build Admin <sonicbld@microsoft.com>

#### A picture of a cute animal (not mandatory but encouraged)