LibELF + LibDebug: Reduce allocations during symbolification

Avoid promotion of static strings to AK::String, instead use
AK::StringView and operator ""sv, to force string view's instead
which avoids allocation of String. This code path isn't hot enough
that it makes a huge difference, but every bit counts.

Userland/Libraries/LibDebug/Dwarf/DwarfInfo.h

@@ -60,7 +60,7 @@ public:
 private:
     void populate_compilation_units();
 
-    ReadonlyBytes section_data(const String& section_name) const;
+    ReadonlyBytes section_data(const StringView& section_name) const;
 
     const ELF::Image& m_elf;
     ReadonlyBytes m_debug_info_data;