debug: symtab: fix ignored type qualifiers on func return type

const is ignored on the function return type. A warning is reported with
-Wignored-qualifers. Remove the ignored const.

Signed-off-by: Ryan McClelland <[email protected]>

Author: XenuIsWatching

include/zephyr/debug/symtab.h

@@ -46,7 +46,7 @@ struct symtab_info {
  *
  * @return Pointer to the symbol table.
  */
-const struct symtab_info *const symtab_get(void);
+const struct symtab_info *symtab_get(void);
 
 /**
  * @brief Find the symbol name with a binary search
@@ -57,7 +57,7 @@ const struct symtab_info *const symtab_get(void);
  *
  * @return Name of the nearest symbol if found, otherwise "?" is returned.
  */
-const char *const symtab_find_symbol_name(uintptr_t addr, uint32_t *offset);
+const char *symtab_find_symbol_name(uintptr_t addr, uint32_t *offset);
 
 /**
  * @}

subsys/debug/symtab/symtab.c

@@ -10,14 +10,14 @@
 #include <zephyr/debug/symtab.h>
 #include <zephyr/shell/shell.h>
 
-const struct symtab_info *const symtab_get(void)
+const struct symtab_info *symtab_get(void)
 {
 	extern const struct symtab_info z_symtab;
 
 	return &z_symtab;
 }
 
-const char *const symtab_find_symbol_name(uintptr_t addr, uint32_t *offset)
+const char *symtab_find_symbol_name(uintptr_t addr, uint32_t *offset)
 {
 	const struct symtab_info *const symtab = symtab_get();
 	const uint32_t symbol_offset = addr - symtab->first_addr;