Merge patch series "Add some validation for vector, vector crypto and fp stuff"

Conor Dooley <conor@kernel.org> says:

From: Conor Dooley <conor.dooley@microchip.com>

Yo,

This series is partly leveraging Clement's work adding a validate
callback in the extension detection code so that things like checking
for whether a vector crypto extension is usable can be done like:
	has_extension(<vector crypto>)
rather than
	has_vector() && has_extension(<vector crypto>)
which Eric pointed out was a poor design some months ago.

The rest of this is adding some requirements to the bindings that
prevent combinations of extensions disallowed by the ISA.

There's a bunch of over-long lines in here, but I thought that the
over-long lines were clearer than breaking them up.

Cheers,
Conor.

* patches from https://lore.kernel.org/r/20250312-abide-pancreas-3576b8c44d2c@spud:
  dt-bindings: riscv: document vector crypto requirements
  dt-bindings: riscv: add vector sub-extension dependencies
  dt-bindings: riscv: d requires f
  RISC-V: add f & d extension validation checks
  RISC-V: add vector crypto extension validation checks
  RISC-V: add vector extension validation checks

Link: https://lore.kernel.org/r/20250312-abide-pancreas-3576b8c44d2c@spud
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>

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