- Reduce max_memory_size from 512GB to 1GB for safer allocation limits
- Add memory operation logging for debugging purposes
- Implement MapMemory() with additional safety checks and large allocation handling
- Add validation checks for memory mappings
- Introduce chunked allocation strategy for large memory requests
- Add detailed error logging for memory operations

- Add maximum memory size limit of 512GB (Overkill)
- Implement additional safety checks for memory mapping:
  * Validate non-zero addresses
  * Verify address alignment
  * Add length validation against maximum size
- Remove redundant assertion for host_offset alignment
- Remove potentially problematic mapping verification
- Improve error logging for invalid mapping attempts

These changes enhance memory safety by adding proper bounds
checking and validation before performing memory mappings,
while removing a potentially problematic post-mapping
verification step.

Renames 'size' parameter to 'length' in IsValidMapping() methods to avoid
conflicts with Android NDK macros that define 'size'. This fixes compilation
issues on Android platforms where the 'size' macro is defined.

Implements several improvements to memory handling and validation:

- host_memory: Add IsValidMapping() and IsDirectMappingEnabled() methods to
  validate memory access
- host_memory: Fix virtual base offset calculation to use proper pointer
  arithmetic
- host_memory: Add size field to track allocation size
- nvhost_ctrl_gpu: Return InvalidState instead of InvalidValue for TPC mask
  buffer size validation
- Update copyright year for citron

The changes improve memory safety by adding explicit validation checks and
fixing pointer arithmetic in the virtual memory implementation.

This commit makes two main changes:

1. Adds support for GetTpcMasks2 (ioctl 0x13) in nvhost_ctrl_gpu:
- Implements new GetTpcMasks2 method to handle TPC mask queries
- Adds IoctlGetTpcMasks structure to store mask parameters
- Returns conservative single TPC configuration for compatibility

2. Enhances memory mapping validation in HostMemory:
- Adds verification check after memory mapping operations
- Improves error handling for direct mapped address enabling
- Adds logging for mapping and direct address failures

Additional changes:
- Updates copyright headers to include citron Emulator Project
- Improves error handling and validation in several paths
- Adds debug logging for TPC mask operations

This improves GPU virtualization support and memory mapping reliability.

Add proper error handling and recovery mechanisms for memory mapping
operations instead of using assertions.

Allows the use of the macro in constexpr-contexts.
Also avoids some potential problems when nesting braces inside it.

src/common/host_memory.cpp:410:14: error: unused function 'ChooseVirtualBase' [-Werror,-Wunused-function]
  410 | static void* ChooseVirtualBase(size_t virtual_size) {
      |              ^~~~~~~~~~~~~~~~~