riscv: Make riscv_isa_vendor_ext_andes array static

Since this array is only used in this file, it should be static.
Signed-off-by: Charlie Jenkins <charlie@rivosinc.com>
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202407241530.ej5SVgX1-lkp@intel.com/Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Link: https://lore.kernel.org/r/20240807-make_andes_static-v1-1-b64bf4c3d941@rivosinc.comSigned-off-by: Palmer Dabbelt <palmer@rivosinc.com>

arch/riscv/kernel/vendor_extensions/andes.c

@@ -8,7 +8,7 @@
 #include <linux/types.h>
 
 /* All Andes vendor extensions supported in Linux */
-const struct riscv_isa_ext_data riscv_isa_vendor_ext_andes[] = {
+static const struct riscv_isa_ext_data riscv_isa_vendor_ext_andes[] = {
 	__RISCV_ISA_EXT_DATA(xandespmu, RISCV_ISA_VENDOR_EXT_XANDESPMU),
 };