hw/misc/aspeed_sbc: Connect ASPEED OTP memory device to SBC

hw/misc/aspeed_sbc: Connect ASPEED OTP memory device to SBC

This patch connects the aspeed.otp device to the ASPEED Secure Boot
Controller (SBC) model. It implements OTP memory access via the SBC's
command interface and enables emulation of secure fuse programming
flows.

The following OTP commands are supported:
  - READ: reads a 32-bit word from OTP memory into internal registers
  - PROG: programs a 32-bit word value to the specified OTP address

Trace events are added to observe read/program operations and command
handling flow.

Signed-off-by: Kane-Chen-AS <kane_chen@aspeedtech.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250812094011.2617526-3-kane_chen@aspeedtech.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>