staging: gpib: cb7210 console messaging cleanup

staging: gpib: cb7210 console messaging cleanup

Enable module name to be printed in pr_xxx and dev_xxx
Use DRV_NAME defined as KBUILD_MODNAME instead of hard coded
string "cb7210" everywhere.

Remove "cb7210:" string prefix in messages since module name
printing is enabled.

Change pr_err to dev_err where possible.

Remove interrupt warnings.

Return consistent error codes with error messages:
  -EBUSY when resources are busy
  -ENODEV when device is not present
  -EIO for others.

Return -ENOMEM for failed kmalloc (no message in driver)

Remove PCMCIA debug comments, PCMCIA_DEBUG conditional compilation
symbol, the DEBUG macro definition and its uses.

Change pr_warn to dev_warn and pr_err to dev_err where possible.

Remove commented printk.

Signed-off-by: Dave Penkler <dpenkler@gmail.com>
Link: https://lore.kernel.org/r/20250220090920.32497-1-dpenkler@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>