package/libgpg-error: bump to version 1.33

package/libgpg-error: bump to version 1.33

The syscfg header name is now based on the target triplet, with the
vendor part set to "unknown". The symlink approach no longer works since
we use "buildroot" for the vendor part. Override the target host
configure parameter to match the build system expectation.

The x86 header vendor part has been renamed to "unknown" as well.
Account for that in BR2_PACKAGE_LIBGPG_ERROR_SYSCFG.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>