of: irq: Fix interrupt-map entry matching

This patch fixes interrupt-map entry matching code to properly match all
specifier cells with interrupt map entries.

Signed-off-by: Tomasz Figa <[e-mail]>
Tested-by: Sachin Kamat <[e-mail]>
Signed-off-by: Rob Herring <[e-mail]>

drivers/of/irq.c

···
 			/* Compare specifiers */
 			match = 1;
 			for (i = 0; i < (addrsize + intsize); i++, imaplen--)
-				match = !((match_array[i] ^ *imap++) & imask[i]);
+				match &= !((match_array[i] ^ *imap++) & imask[i]);
 
 			pr_debug(" -> match=%d (imaplen=%d)\n", match, imaplen);