Remove upstreamed patches:
- 020-MIPS-Include-missing-mips16.S-in-libgcc-lib1funcs.S.patch
- 021-Reuse-scratch-registers-generated-by-LRA.patch
All other patches are automatically refreshed.
Signed-off-by: Shiji Yang <yangshiji66@outlook.com>
Link: https://github.com/openwrt/openwrt/pull/18891
Signed-off-by: Robert Marko <robimarko@gmail.com>