soc/mediatek/mt8188: Add SPM firmware

Add SPM firmware version: pcm_suspend_20220705_v2_MP.

SPM suspend can turn 26M clock off when system goes into suspend
to save power.

TEST=spm pc is 0x400 which is in idle state.
BUG=b:236331724

(cherry picked from commit 05afca23a48f2443b51bded335d6f8ce070d221e)

Original-Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com>
Original-Change-Id: I2221f757ebe29ba982b80291a3f2fbd314083615
GitOrigin-RevId: 05afca23a48f2443b51bded335d6f8ce070d221e
Change-Id: I5b0ead7682f6241959c9d1f20c795e3a857fc20f
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/coreboot/blobs/+/3857106
Tested-by: CopyBot Service Account <copybot.service@gmail.com>
Reviewed-by: Ricardo Quesada <ricardoq@chromium.org>
Commit-Queue: Reka Norman <rekanorman@chromium.org>
4 files changed