drm/i915/vbt: Update the version and expected size of BDB_GENERAL_DEFINITIONS map

This will remove the "Expected child device config size for VBT
version 235 not known" debug message seen in TGL, although this is not
fixing anything it good to keep our VBT parser updated.
Reviewed-by: NMatt Roper <matthew.d.roper@intel.com>
Signed-off-by: NJosé Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201008211932.24989-2-jose.souza@intel.com

drivers/gpu/drm/i915/display/intel_bios.c

@@ -1917,7 +1917,7 @@ parse_general_definitions(struct drm_i915_private *dev_priv,
 		expected_size = 37;
 	} else if (bdb->version <= 215) {
 		expected_size = 38;
-	} else if (bdb->version <= 229) {
+	} else if (bdb->version <= 237) {
 		expected_size = 39;
 	} else {
 		expected_size = sizeof(*child);