[gcc(refs/users/meissner/heads/work169)] Add -mcpu=power11 support.

https://gcc.gnu.org/g:beb26520a2540b54ab5b47f04735152d58cef712 commit beb26520a2540b54ab5b47f04735152d58cef712 Author: Michael Meissner Date: Mon Jun 17 14:40:40 2024 -0400 Add -mcpu=power11 support. This patch adds the power11 option to the -mcpu= and -mtune= switches. T

[gcc(refs/users/meissner/heads/work169)] Add -mcpu=power11 support.

https://gcc.gnu.org/g:05dfc843bde7a9f828d6ab8993121f73ec4df5d4 commit 05dfc843bde7a9f828d6ab8993121f73ec4df5d4 Author: Michael Meissner Date: Mon Jun 17 14:40:40 2024 -0400 Add -mcpu=power11 support. This patch adds the power11 option to the -mcpu= and -mtune= switches. T