heimdal: asn1: Use unsigned bitfields for named bitsets
Import upstream 6747e1628:
asn1: Use unsigned bitfields for named bitsets Signed 1-bit bitfields are undefined in C.
This should fix the following warnings, which for unknown reasons are
errors in CI:
/usr/src/crypto/heimdal/lib/hx509/ca.c:1020:22: warning: implicit truncation from 'int' to a one-bit wide bit-field changes value from 1 to -1 [-Wsingle-bit-bitfield-constant-conversion]
1020 | ku.digitalSignature = 1;
| ^ ~
/usr/src/crypto/heimdal/lib/hx509/ca.c:1021:21: warning: implicit truncation from 'int' to a one-bit wide bit-field changes value from 1 to -1 [-Wsingle-bit-bitfield-constant-conversion]
1021 | ku.keyEncipherment = 1;
| ^ ~
/usr/src/crypto/heimdal/lib/hx509/ca.c:1028:17: warning: implicit truncation from 'int' to a one-bit wide bit-field changes value from 1 to -1 [-Wsingle-bit-bitfield-constant-conversion]
1028 | ku.keyCertSign = 1;
| ^ ~
/usr/src/crypto/heimdal/lib/hx509/ca.c:1029:13: warning: implicit truncation from 'int' to a one-bit wide bit-field changes value from 1 to -1 [-Wsingle-bit-bitfield-constant-conversion]
1029 | ku.cRLSign = 1;
| ^ ~PR: 276960
Fixes: 1b7487592987
MFC after: 1 week
(cherry picked from commit 219b6e442308d5353b2af5f0771ce9b887b70754)