tools/net/ynl: support rendering C array members to strings

The nl80211 family encodes the list of supported ciphers as a C array of
u32 values. Add support for translating arrays of scalars into strings
for enum names and display hints.

Signed-off-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://patch.msgid.link/20250211120127.84858-4-donald.hunter@gmail.com


Signed-off-by: Jakub Kicinski <kuba@kernel.org>