riscv: errata: sifive: Use SYM_*() assembly macros

riscv: errata: sifive: Use SYM_*() assembly macros

ENTRY()/END() macros are deprecated and we should make use of the
new SYM_*() macros [1] for better annotation of symbols. Replace the
deprecated ones with the new ones.

[1] https://docs.kernel.org/core-api/asm-annotations.html

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Reviewed-By: Clément Léger <cleger@rivosinc.com>
Link: https://lore.kernel.org/r/20240709160536.3690-2-jszhang@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>