fix(p/grc721): OriginCaller -> PreviousRealm

[notJoon]

Description

When set to OriginCaller, a situation occurs where NFT ownership cannot be transferred to other contracts, preventing Mint or Approve operations (we can think of a flow like user -> position -> staker). Therefore, we changed the caller to PrevRealm to handle this appropriately.

cc @jinoosss

[Gno2D2]

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[ltzmaxwell]

it looks basic_nft_test.go failed, should also update it.

[notJoon]

it looks basic_nft_test.go failed, should also update it.

@ltzmaxwell fixed all tests 136119a

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test fixed