powerpc: kgdb: fix kernel-doc warnings

Remove empty comment line at the beginning of a kernel-doc function
block. Add a "Return:" section for this function.

These changes prevent 2 kernel-doc warnings:

Warning: ../arch/powerpc/kernel/kgdb.c:103 Cannot find identifier on line:
 *
Warning: kgdb.c:113 No description found for return value of 'kgdb_skipexception'

Fixes: 949616c ("powerpc/kgdb: Bail out of KGDB when we've been triggered")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20260225055314.247966-1-rdunlap@infradead.org

Author: rddunlap

arch/powerpc/kernel/kgdb.c

@@ -101,14 +101,15 @@ static int computeSignal(unsigned int tt)
 }
 
 /**
- *
  *	kgdb_skipexception - Bail out of KGDB when we've been triggered.
  *	@exception: Exception vector number
  *	@regs: Current &struct pt_regs.
  *
  *	On some architectures we need to skip a breakpoint exception when
  *	it occurs after a breakpoint has been removed.
  *
+ *	Return: return %1 if the breakpoint for this address has been removed,
+ *		otherwise return %0
  */
 int kgdb_skipexception(int exception, struct pt_regs *regs)
 {