Tegra: T210: Add QSPI driver

This is the normal Tegra SPI driver modified to work with the
QSPI controller in Tegra210. It does not do 2x/4x transfers
or any other QSPI protocol.

Signed-off-by: Yen Lin <yelin@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Reviewed-by: Jagan Teki <jteki@openedev.com>
diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile
index 637fea8..3eca745 100644
--- a/drivers/spi/Makefile
+++ b/drivers/spi/Makefile
@@ -46,6 +46,7 @@
 obj-$(CONFIG_TEGRA114_SPI) += tegra114_spi.o
 obj-$(CONFIG_TEGRA20_SFLASH) += tegra20_sflash.o
 obj-$(CONFIG_TEGRA20_SLINK) += tegra20_slink.o
+obj-$(CONFIG_TEGRA210_QSPI) += tegra210_qspi.o
 obj-$(CONFIG_TI_QSPI) += ti_qspi.o
 obj-$(CONFIG_XILINX_SPI) += xilinx_spi.o
 obj-$(CONFIG_ZYNQ_SPI) += zynq_spi.o