drm/i915: Drop dead code for xehpsdv

PCI IDs for XEHPSDV were never added and platform always marked with
force_probe. Drop what's not used and rename some places to either be
xehp or dg2, depending on the platform/IP checks.

The registers not used anymore are also removed.

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Acked-by: Tvrtko Ursulin <tursulin@ursulin.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20240320060543.4034215-2-lucas.demarchi@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index d6193c8..7a84eb3 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -1750,7 +1750,6 @@
 
 #define BXT_RP_STATE_CAP        _MMIO(0x138170)
 #define GEN9_RP_STATE_LIMITS	_MMIO(0x138148)
-#define XEHPSDV_RP_STATE_CAP	_MMIO(0x250014)
 #define PVC_RP_STATE_CAP	_MMIO(0x281014)
 
 #define MTL_RP_STATE_CAP	_MMIO(0x138000)
@@ -5401,7 +5400,7 @@
 #define	    POWER_SETUP_I1_SHIFT		6	/* 10.6 fixed point format */
 #define	    POWER_SETUP_I1_DATA_MASK		REG_GENMASK(15, 0)
 #define GEN12_PCODE_READ_SAGV_BLOCK_TIME_US	0x23
-#define   XEHP_PCODE_FREQUENCY_CONFIG		0x6e	/* xehpsdv, pvc */
+#define   XEHP_PCODE_FREQUENCY_CONFIG		0x6e	/* pvc */
 /* XEHP_PCODE_FREQUENCY_CONFIG sub-commands (param1) */
 #define     PCODE_MBOX_FC_SC_READ_FUSED_P0	0x0
 #define     PCODE_MBOX_FC_SC_READ_FUSED_PN	0x1