spi: gpio: Use explicit 'unsigned int' for parameter types

spi: gpio: Use explicit 'unsigned int' for parameter types

The C standard allows 'unsigned' as a shorthand for 'unsigned int'.
For improved code clarity and consistency with the prevailing kernel coding
style, replace the shorthand with the more explicit 'unsigned int' type
for function parameters.

This is a purely stylistic cleanup and has no functional impact on the
generated code.

Signed-off-by: Darshan Rathod <darshanrathod475@gmail.com>
Link: https://patch.msgid.link/20250716095906.21812-1-darshanrathod475@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>