PCI: imx6: Add support for MSI
PCI: imx6: Add support for MSI

This patch adds support for Message Signaled Interrupts in the imx6-pcie
driver.

Signed-off-by: Harro Haan <40e8a27788f449d808beae313ed476eba749f2e0@gmail.com>
Signed-off-by: Juergen Beisert <78de07fffa2d6416458d1c13286e3f53f43d72e9@pengutronix.de>
Signed-off-by: Lucas Stach <48c9e973d8f86eb0cdae200124c5925db7587c4e@pengutronix.de>
Signed-off-by: Bjorn Helgaas <f10ec01be0c6b54271af5c550cd257810bdf3268@google.com>
Acked-by: Richard Zhu <745816b10228d666aef7119ae868544c37433c8d@freescale.com>
KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs