wifi: rtl8xxxu: Dump the efuse right after reading it

wifi: rtl8xxxu: Dump the efuse right after reading it

Someone reported a problem with their TP-Link WN722N (RTL8188EUS):

usb 1-1: This Realtek USB WiFi dongle (0x2357:0x010c) is untested!
usb 1-1: Please report results to Jes.Sorensen@gmail.com
usb 1-1: Fatal - failed to parse EFuse
rtl8xxxu: probe of 1-1:1.0 failed with error -22

This error can happen when the first two bytes of the efuse don't have
the expected magic value of 0x8129. In a situation like this it could
be useful to see the contents of the efuse.

Dump the efuse right after reading it, before trying to parse it.

Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Reviewed-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/1f544dc4-17f6-4401-995d-5cb4567b82fa@gmail.com