QEMU creates ACPI tables but doesn't include FPDT (Firmware Performance
Data Table). Add FPDT generation in qfw_acpi.c following the same
pattern as BGRT.
Move the acpi_write_fpdt() function from acpi_table.c to acpi_extra.c so
that is available even when CONFIG_ACPIGEN is disabled.
This allows QEMU x86_64 builds to provide firmware boot timing
information to the operating system.
Disable this for qemu-riscv64_smode_acpi as it is near the code-size
limit.
Co-developed-by: Claude <noreply@anthropic.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
9c3919f31e