platform/mellanox: mlxreg-io: Extend number of hwmon attributes

Extend maximum number of the attributes, exposed to 'sysfs'.
It is requires in order to support modular systems, which
provide more attributes for system control, statuses and info.
Signed-off-by: NVadim Pasternak <vadimp@nvidia.com>
Reviewed-by: NMichael Shych <michaelsh@nvidia.com>
Link: https://lore.kernel.org/r/20211002093238.3771419-6-vadimp@nvidia.comSigned-off-by: NHans de Goede <hdegoede@redhat.com>

drivers/platform/mellanox/mlxreg-io.c

@@ -18,7 +18,7 @@
 
 /* Attribute parameters. */
 #define MLXREG_IO_ATT_SIZE	10
-#define MLXREG_IO_ATT_NUM	48
+#define MLXREG_IO_ATT_NUM	96
 
 /**
  * struct mlxreg_io_priv_data - driver's private data: