solidrun-imx6: allow to bootup 4.6.x

package/u-boot/files/boot.script.imx6

@@ -1,4 +1,4 @@
-setenv bootargs console=ttymxc0,115200 video=mxcfb0:dev=hdmi,1920x1080M@60,if=RGB24,bpp=32
-ext4load mmc 0:1 0x42000000 boot/${fdtfile}
+setenv bootargs 'console=ttymxc0,115200 video=mxcfb0:dev=hdmi,1920x1080M@60,if=RGB24,bpp=32 root=/dev/mmcblk0p1'
+ext4load mmc 0:1 0x18000000 boot/${fdtfile}
 ext4load mmc 0:1 0x10800000 boot/kernel
-bootz 0x10800000 - 0x42000000
+bootz 0x10800000 - 0x18000000

target/arm/kernel/solidrun-imx6

@@ -11,4 +11,3 @@ CONFIG_KUSER_HELPERS=y
 CONFIG_PCI_IMX6=y
 CONFIG_PM_SLEEP=y
 CONFIG_ATAGS=y
-CONFIG_CMDLINE_FORCE=y