configs/microchip_mpfs_icicle_defconfig: fix zicsr build error

Build is failing with an unrecognised opcode error due to missing
`zicsr` extension requirement. This is introduced with GCC version 12.
When binutils was updated to v2.38 they updated to the default ISA spec
version 20191213. In this version the original i extension split into i,
Zicsr and Zifencei. A fix for this has been added since U-Boot version
2022.01 to detect new Zicsr and Zifencei extensions and enable it when needed
therefore, an updated U-Boot tag to our latest 2023.09 release will fix
this as in our latest release we have updated to U-Boot version 2023.07.
Update the kernel verion in line with the U-Boot release version to
ensure compatiblities and latest features and fixes are included.
Remove riscv_g selection as it is now selected by default.

Signed-off-by: Jamie Gibbons <jamie.gibbons@microchip.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
1 file changed