wil6210: print "ulong" fields in hex format in the debugfs

In the debugfs, there is "ulong" attribute printing.
It is used for bitmap printing, and more appropriate format
would be hexadecimal, not decimal.

Change-Id: I1d542873b9fa8f6f34ae3ed805e61f665d9d5691
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Git-commit: 8ea06188fd8cb4c6bb85663b6dedcab22f7ffba7
Git-repo: https://github.com/kvalo/ath.git


Signed-off-by: Hamad Kadmany <hkadmany@codeaurora.org>