u-boot: update to
c873063
*update to lsdk 1906 tag
include the following changes:
c873063 - common: qixis: make the qixis compatible with new soc
4fe7bca - armv8: ls1028a: Add environment variables to facilitate the boot
d7baae8 - dm: i2c: lx2160: Revert lx2160 i2c dm support patch set
3c75182 - armv8: lx2160ardb : Add slave nodes under the i2c0 controller
1807bb1 - armv8: lx2160ardb : Add pcf2127 node
600e32c - armv8: dts: fsl-lx2160a: add i2c controller and gpio DT nodes
efe84a3 - gpio: do not include <asm/arch/gpio.h> on ARCH_LX2160A
8fbdb38 - drivers: i2c: mxc: Solve the compiler error when using i2c dm mode
210c880 - configs: lx2160a: enable DM support for pcf2127 rtc
4691972 - armv8: lx2160a: The lx2160a platform supports the I2C driver model.
9b6da05 - board/freescale/common: secure_boot: Set bootdelay to -2.
c419c9c - armv8: fsl-layerscape: Increase mmc read size for secure-boot headers
e3a324e - configs: fsl-layerscape: secure_boot: Enable setexpr command.
03313e4 - armv8: dts: ls1028a: Add FSPI node for ls1028ardb and ls1028aqds
47a485c - configs: ls1028a: Enable FSPI support for ls1028ardb and ls1028aqds
7a5853e - mtd: spi-nor-ids: Add micron mt35xu02g flash ID
d5cf4da - configs: ls1012: unset CONFIG_SPI_FLASH_BAR, move CONFIG_FSL_QSPI to defconfig
bcdf1cb - driver: spi: Update QSPI driver xfer
0c337c2 - armv8: ls2088ardb: Fix MC firmware loading during SD boot
336202e - armv8: ls2088aqds: Fix MC firmware loading during SD boot
7be353f - armv8: ls2088aqds: Add bootcmd for TFA boot
9664bf5 - armv8: fsl-layerscape: Change bootcmd update logic
3bad029 - ls1046ardb: Add CONFIG_ENV_ADDR to init env in qspi boot
b892a5c - armv8: fsl-lsch2: add clock support for the second eSDHC
6bec285 - configs: ls1088aqds: Enable config to write aligned data to TxFIFO
7db76c5 - arm64: configs: ls1046afrwy: config update
268ebc5 - armv8: fsl-layerscape: Update qspi clk cfg
da7f6ec - armv8/fsl-layerscape: Add loop to check L3 dcache status
55007f3 - ARM: dts: ls1021a: Fixed reg for sata node
*Upgrade version to 2019.04
Signed-off-by: Chunrong Guo <chunrong.guo@nxp.com>