Everywhere: Add sv suffix to strings relying on StringView(char const*)

Each of these strings would previously rely on StringView's char const*
constructor overload, which would call __builtin_strlen on the string.
Since we now have operator ""sv, we can replace these with much simpler
versions. This opens the door to being able to remove
StringView(char const*).

No functional changes.

Tests/Kernel/fuzz-syscalls.cpp

@@ -97,7 +97,7 @@ static void do_weird_call(size_t attempt, int syscall_fn, size_t arg1, size_t ar
         attempt, Syscall::to_string((Syscall::Function)syscall_fn), arg1, arg2, arg3, fake_params);
     for (size_t i = 0; i < fake_params_count; ++i) {
         if (i != 0)
-            builder.append(", ");
+            builder.append(", "sv);
         builder.appendff("{:p}", fake_params[i]);
     }
     builder.append("]");