mmc: block: Add quirk and increase read data timeout for hynix emmc

Hynix emmc cards are causing read data timeout.
Increase timeout value to max of 4sec and add card
quirk for all Hynix emmc cards.

Change-Id: I78637dc787964ec5cafe297587d6a12ecf1d31c6
Signed-off-by: Ritesh Harjani <riteshh@codeaurora.org>
[xiaonian@codeaurora.org: fixed trivial merge conflicts]
Signed-off-by: Xiaonian Wang <xiaonian@codeaurora.org>