fix nested struct init value error in gc aot

[xujuntwt95329]

No description provided.

[chenliuyang1989]

meet bus error
target triple: :armv7-none-linux-gnueabihf
data # ./iwasm -f test --gc-heap-size=50241024 aqaraSys.aot 1
[15213.513188] Alignment trap: not handling instruction f4610aef at []
[15213.517638] 8<--- cut here ---
[15213.520539] Unhandled fault: alignment exception (0x001) at 0xb5753444
[15213.552586] pgd = 7f4adf9d
[15213.552626] [b5753444] *pgd=22c4c835, *pte=26bed5df, *ppte=26bede7e
Bus error