rtlwifi: rtl8821ae: Fix lockups on boot

rtlwifi: rtl8821ae: Fix lockups on boot

In commit 96e3ec60b1d6c ("rtlwifi: rtl8821ae: Fix system lockups on boot"),
an attempt was made to fix a regression introduced in commit 0dcf1db9867e
("rtlwifi: Remove the clear interrupt routine from all drivers").
Unfortunately, there were logic errors in that patch that prevented
affected boxes from booting even after that patch was applied.

The actual cause of the original problem is unknown as none of the
developers have systems that are affected.

Fixes: 96e3ec60b1d6 ("rtlwifi: rtl8821ae: Fix system lockups on boot")
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org> [V4.1+]
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>