rtlwifi: Convert COMP_XX entries into a proper debugging mask

The debugging macros contain a parameter COMP_XX that could be used as a
mask; however, the code turns all these various bits on at the same time.
This change implements them as a proper mask, and adds module parameters
to set the mask at load time.

The current name "debug" for the debug level has been changed to
"debug_level" to better differentiate it from "debug_mask".

The debug routines have also been changed to interrogate the structure
that is loaded at entry time. As a result, the structure rtl_debug is no
longer needed, and all references to it are deleted.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/realtek/rtlwifi/usb.c

@@ -1073,7 +1073,6 @@ int rtl_usb_probe(struct usb_interface *intf,
 	rtlpriv->rtlhal.interface = INTF_USB;
 	rtlpriv->cfg = rtl_hal_cfg;
 	rtlpriv->intf_ops = &rtl_usb_ops;
-	rtl_dbgp_flag_init(hw);
 	/* Init IO handler */
 	_rtl_usb_io_handler_init(&udev->dev, hw);
 	rtlpriv->cfg->ops->read_chip_version(hw);