compiler.h: Make addressable symbols less of an eyesore

compiler.h: Make addressable symbols less of an eyesore

Avoid underscore overload by changing:

  __UNIQUE_ID___addressable_loops_per_jiffy_868

to the following:

  __UNIQUE_ID_addressable_loops_per_jiffy_868

This matches the format used by other __UNIQUE_ID()-generated symbols
and improves readability for those who stare at ELF symbol table dumps.

Acked-by: Petr Mladek <pmladek@suse.com>
Tested-by: Joe Lawrence <joe.lawrence@redhat.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>