Replace a commented-out delay that makes ECC correction fail randomly.

This commit has accidentally been dropped by the following merge commit
2cc74dc89214d6bcc7e22beab0e778342c56eee6
Let's re-apply it.

Without this, ECC wouldn't work correctly when running from IRAM.  It might
also have failed sometimes when running from normal RAM, not sure.  I'm also
not really clear on why delaying is better than polling; I suspect the
polling must be wrong.

Conflicts:
	drivers/mtd/nand/comcerto_nand.c

Change-Id: I27c1c76cc49175ae493acb62252bf09742203e18
1 file changed