The `handle_range` function in `kconfig_lint` was failing to correctly
handle large hexadecimal values (64-bit value) due to limitations with
Perl's handling of standard integers.
This commit modifies the function to use the `bigint` pragma, enabling
it to handle arbitrarily large integers. This prevents issues with
64-bit hexadecimal values and ensures accurate comparisons for range
validation.
Change-Id: I402bb9bec9ba5bfb79b4185f35228c41d4a7b674
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/84575
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Christian Walter <christian.walter@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
