ZYNQMP: Bootgen incorrectly reports a BIF attribute error for [keysrc_encryption]

[scagate]

Bootgen should support the [keysrc_encryption] efuse_blk_key statement when used with -arch zynqmp option. However, recent versions of bootgen report:

[WARNING]: BIF attribute error !!! [keysrc_encryption] not supported for the specified architecture

The issue is caused by the use of 'or' condition instead of an 'and' at the following location:
https://github.com/Xilinx/bootgen/blob/xlnx_rel_v2025.2/bisonflex/bif.tab.cpp#L772