nvidia-events: Fix EventContextCount and remove compat

Fix EventContextCount being written as 0 during JSON-to-binary
conversion by moving context counting before the header fwrite().

Also remove b

nvidia-events: Fix EventContextCount and remove compat

Fix EventContextCount being written as 0 during JSON-to-binary
conversion by moving context counting before the header fwrite().

Also remove backward compatibility for eventContexts as object
format - only array format is now supported.

Change-Id: Ied643264148e4faeff6d73b9c3f6519511f11992
Signed-off-by: Daniel Osawa <dosawa@nvidia.com>

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Consistently use helpers

add_int and the new add_uint helper functions reduce the amount of code
we write, and make adding things to json more "normal". Additionally
add add_string and add_string_l

Consistently use helpers

add_int and the new add_uint helper functions reduce the amount of code
we write, and make adding things to json more "normal". Additionally
add add_string and add_string_len, which add a null terminated and non
null terminated string respectively.

This commit was done largely using ast-grep.

Change-Id: Id18ddc2405e95b9b3c8aeb832b5903eb90e1267c
Signed-off-by: Ed Tanous <etanous@nvidia.com>

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Add NVIDIA Event CPER section support

Add parsing and generation for NVIDIA Event error sections, including:
- CPU and GPU device-specific event info
- Multiple context data formats (key-value pairs

Add NVIDIA Event CPER section support

Add parsing and generation for NVIDIA Event error sections, including:
- CPU and GPU device-specific event info
- Multiple context data formats (key-value pairs, opaque, GPU metadata,
legacy XID, recommended actions)
- JSON schema specifications
- Example files and tests

Change-Id: Ibf66e2e4263014c2157958acf2f6158361fc6866
Signed-off-by: Daniel Osawa <dosawa@nvidia.com>
Signed-off-by: Ed Tanous <etanous@nvidia.com>

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