superH memory read/write functions bugs on sunflower for embedded systems

[btsouts]

Describe the bug
Functions:

uchar superHreadbyte(Engine *, State *S, ulong addr);
ulong superHreadlong(Engine *, State *S, ulong addr);
ushort superHreadword(Engine *, State *S, ulong addr);
void superHwritelong(Engine *, State *S, ulong addr, ulong data);
void superHwriteword(Engine *, State *S, ulong addr, ulong data);
void superHwritebyte(Engine *, State *S, ulong addr, ulong data);

produce segmentation faults when executed since all the structures
related to numa have not been initialized or are NULL.

To Reproduce
Steps to reproduce the behavior (on PC):

1. Clone Helium-firmware@4f14f6 with sunflower-simulator@t8d5601e.
2. Apply patches for spresense (according to README).
3. Modify sim/main.c so that sunflower can be compiled natively.
4. Execute any m file.

Steps to reproduce the behavior (on spresense):

1. Clone Helium-firmware@4f14f6 with sunflower-simulator@t8d5601e.
2. Compile for spresense (according to README).
3. Run spresense and load an srec file in sunflower.
4. Run the simulator.

[phillipstanleymarbell]

This is now fixed. @btsouts please tag with the corresponding issue / commit that addressed this.