ACPICA: actbl1: Replace 1-element arrays with flexible arrays

ACPICA commit 8c9bd5d151f77767b2fd937911848b7159dc8ee9

Similar to "Replace one-element array with flexible-array", replace the
1-element array with a proper flexible array member as defined by C99.

This allows the code to operate without tripping compile-time and run-
time bounds checkers (e.g. via __builtin_object_size(), -fsanitize=bounds,
and/or -fstrict-flex-arrays=3).

No .text nor .data differences result from this change.

Link: acpica/acpica@8c9bd5d1
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Author: kees

include/acpi/actbl1.h

@@ -944,7 +944,7 @@ struct acpi_table_drtm {
 
 struct acpi_drtm_vtable_list {
 	u32 validated_table_count;
-	u64 validated_tables[1];
+	u64 validated_tables[];
 };
 
 /* 2) Resources List (of Resource Descriptors) */
@@ -959,7 +959,7 @@ struct acpi_drtm_resource {
 
 struct acpi_drtm_resource_list {
 	u32 resource_count;
-	struct acpi_drtm_resource resources[1];
+	struct acpi_drtm_resource resources[];
 };
 
 /* 3) Platform-specific Identifiers List */
@@ -982,7 +982,7 @@ struct acpi_table_ecdt {
 	struct acpi_generic_address data;	/* Address of EC data register */
 	u32 uid;		/* Unique ID - must be same as the EC _UID method */
 	u8 gpe;			/* The GPE for the EC */
-	u8 id[1];		/* Full namepath of the EC in the ACPI namespace */
+	u8 id[];		/* Full namepath of the EC in the ACPI namespace */
 };
 
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