platform/x86/amd/pmf: Add BIOS_INPUTS_MAX macro to replace hardcoded array size

platform/x86/amd/pmf: Add BIOS_INPUTS_MAX macro to replace hardcoded array size

Define a new macro BIOS_INPUTS_MAX, to represent the maximum number of
BIOS input values. Replace hardcoded array sizes in relevant structures
with this macro to improve readability and maintainability.

Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Tested-by: Yijun Shen <Yijun.Shen@Dell.com>
Co-developed-by: Patil Rajesh Reddy <Patil.Reddy@amd.com>
Signed-off-by: Patil Rajesh Reddy <Patil.Reddy@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://patch.msgid.link/20251119085813.546813-1-Shyam-sundar.S-k@amd.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>