gnupg: Remove -Werror=array-bounds from compiler flags

gnupg uses zero-length array tricks causing array-bounds warnings.

The warnings have been verifited to be harmless in 2.2.20; for extra
security, this should be re-checked after updating.

Removing -Werror=array-bounds here allows us to use -Werror=array-bounds
globally in OPTIMIZE_FOR=security mode.

Signed-off-by: Bernhard Rosenkränzer <bernhard.rosenkraenzer.ext@huawei.com>

meta-ohos-core/recipes-support/gnupg/gnupg_%.bbappend

+# SPDX-FileCopyrightText: Huawei Inc.
+# SPDX-License-Identifier: Apache-2.0
+
+# gnupg uses zero-length array tricks causing array-bounds warnings.
+# The warnings have been verifited to be harmless in 2.2.20; for extra
+# security, this should be re-checked after updating.
+#
+# Removing -Werror=array-bounds here allows us to use -Werror=array-bounds
+# globally in OPTIMIZE_FOR=security mode.
+
+TARGET_CFLAGS_remove = "-Werror=array-bounds"