[spi_host] Bump to v3.0.0 and reset to D0/V0/S1

This increments the major version of spi_host to allow for planned
changes that are not backward-compatible from a SW perspective.

The development stages get reset as follows:
- D0 because the feature set isn't finalized yet;
- V0 because the testplan isn't complete yet;
- S1 because the DIF is functional but not complete yet.

Signed-off-by: Andreas Kurth <[email protected]>

hw/ip/spi_host/data/spi_host.hjson

@@ -20,11 +20,11 @@
   sw_checklist:       "/sw/device/lib/dif/dif_spi_host",
   revisions: [
     {
-      version:            "2.1.0",
+      version:            "3.0.0",
       life_stage:         "L1",
-      design_stage:       "D2S",
-      verification_stage: "V2S",
-      dif_stage:          "S2",
+      design_stage:       "D0",
+      verification_stage: "V0",
+      dif_stage:          "S1",
     }
   ]
   clocking: [