ARC: [arcompact] brown paper bag bug in unaligned access delay slot fixup

Reported-by: Jo-Philipp Wich <jo@mein.io>
Fixes: 9aed02fe

 ("ARC: [arcompact] handle unaligned access delay slot")
Cc: linux-kernel@vger.kernel.org
Cc: linux-snps-arc@lists.infradead.org
Cc: stable@vger.kernel.org
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>