Build GCC libraries with debug information on AT >= 11.0
Build GCC libraries with debug information on AT >= 11.0

GCC libraries were missing debug information, particularly libgo.

Signed-off-by: Tulio Magno Quites Machado Filho <0e1b3d0765ee75ed64fa2e34822e4949a70a1429@linux.ibm.com>

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