drm/i915/pxp: Clean up zero initializers

Just use a simple {} to zero initialize arrays/structs instead
of the hodgepodge of stuff we are using currently.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231012122442.15718-6-ville.syrjala@linux.intel.comReviewed-by: Jani Nikula <jani.nikula@intel.com>

drivers/gpu/drm/i915/pxp/intel_pxp_gsccs.c

@@ -208,8 +208,8 @@ int intel_pxp_gsccs_create_session(struct intel_pxp *pxp,
 				   int arb_session_id)
 {
 	struct drm_i915_private *i915 = pxp->ctrl_gt->i915;
-	struct pxp43_create_arb_in msg_in = {0};
-	struct pxp43_create_arb_out msg_out = {0};
+	struct pxp43_create_arb_in msg_in = {};
+	struct pxp43_create_arb_out msg_out = {};
 	int ret;
 
 	msg_in.header.api_version = PXP_APIVER(4, 3);
@@ -246,8 +246,8 @@ int intel_pxp_gsccs_create_session(struct intel_pxp *pxp,
 void intel_pxp_gsccs_end_arb_fw_session(struct intel_pxp *pxp, u32 session_id)
 {
 	struct drm_i915_private *i915 = pxp->ctrl_gt->i915;
-	struct pxp42_inv_stream_key_in msg_in = {0};
-	struct pxp42_inv_stream_key_out msg_out = {0};
+	struct pxp42_inv_stream_key_in msg_in = {};
+	struct pxp42_inv_stream_key_out msg_out = {};
 	int ret = 0;
 
 	/*

drivers/gpu/drm/i915/pxp/intel_pxp_huc.c

@@ -18,8 +18,8 @@ int intel_pxp_huc_load_and_auth(struct intel_pxp *pxp)
 {
 	struct intel_gt *gt;
 	struct intel_huc *huc;
-	struct pxp43_start_huc_auth_in huc_in = {0};
-	struct pxp43_huc_auth_out huc_out = {0};
+	struct pxp43_start_huc_auth_in huc_in = {};
+	struct pxp43_huc_auth_out huc_out = {};
 	dma_addr_t huc_phys_addr;
 	u8 client_id = 0;
 	u8 fence_id = 0;

drivers/gpu/drm/i915/pxp/intel_pxp_tee.c

@@ -326,8 +326,8 @@ int intel_pxp_tee_cmd_create_arb_session(struct intel_pxp *pxp,
 					 int arb_session_id)
 {
 	struct drm_i915_private *i915 = pxp->ctrl_gt->i915;
-	struct pxp42_create_arb_in msg_in = {0};
-	struct pxp42_create_arb_out msg_out = {0};
+	struct pxp42_create_arb_in msg_in = {};
+	struct pxp42_create_arb_out msg_out = {};
 	int ret;
 
 	msg_in.header.api_version = PXP_APIVER(4, 2);
@@ -364,8 +364,8 @@ int intel_pxp_tee_cmd_create_arb_session(struct intel_pxp *pxp,
 void intel_pxp_tee_end_arb_fw_session(struct intel_pxp *pxp, u32 session_id)
 {
 	struct drm_i915_private *i915 = pxp->ctrl_gt->i915;
-	struct pxp42_inv_stream_key_in msg_in = {0};
-	struct pxp42_inv_stream_key_out msg_out = {0};
+	struct pxp42_inv_stream_key_in msg_in = {};
+	struct pxp42_inv_stream_key_out msg_out = {};
 	int ret, trials = 0;
 
 try_again: