[gdb/testsuite] Fix gdb.ada/out_of_line_in_inlined.exp for ppc64le

[gdb/testsuite] Fix gdb.ada/out_of_line_in_inlined.exp for ppc64le

On powerpc64le-linux, with test-case gdb.ada/out_of_line_in_inlined.exp I run
into:
...
(gdb) run ^M
Starting program: foo_o224_021-all ^M
^M
Breakpoint 1, 0x0000000010002f48 in foo_o224_021.child1.child2 (s=...) at \
  foo_o224_021.adb:24^M
24              function Child2 (S : String) return Boolean is -- STOP^M
(gdb) FAIL: gdb.ada/out_of_line_in_inlined.exp: scenario=all: \
  run to foo_o224_021.child1.child2
...

The breakpoint is correctly set at the local entry point, and given that the
local entry point doesn't correspond to a line number entry, the instruction
address of the breakpoint is shown.

The problem is that test-case doesn't expect the breakpoint address.

Fix this by allowing the breakpoint address to occur.

Tested on powerpc64le-linux.