Upgrade the u-boot to a more recent version, and drop and refresh
patches while at it. Additionally, use the correct architecture
when running mkimage.
Runtime-tested:
- SiFive Unleashed
- SiFive Unmatched
Dropped:
0009-riscv-Fix-build-against-binutils.patch
Added:
0006-riscv-sifive-fu740-reduce-DDR-speed-from-1866MT-s-to.patch
Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu>
Add new package for building bootloader for the SiFive U-series boards. Supported
boards at this stage are the HiFive Unleashed and HiFive Unmatched.
Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu>