RISC-V: Fix the warning of temporary object dangling references.

During the GCC compilation, some warnings about temporary object dangling
references emerged. They appeared in these code lines in riscv-common.cc:
const riscv_ext_info_t &implied_ext_info, const riscv_ext_info_t &ext_info = get_riscv_ext_info (ext) and auto &ext_info = get_riscv_ext_info (search_ext).
The issue arose because the local variable types were not used in a standardized
way, causing their references to dangle once the function ended.
To fix this, the patch changes the argument type of get_riscv_ext_info to
`const char *`, thereby eliminating the warnings.

Changes for v2:
- Change the argument type of get_riscv_ext_info to `const char *` to eliminate the warnings.

gcc/ChangeLog:

	* common/config/riscv/riscv-common.cc (get_riscv_ext_info): Fix argument type.
	(riscv_subset_list::check_implied_ext): Type conversion.

0 files changed, 0 insertions, 0 deletions