hw-breakpoints: modify signal handling code to refrain from re-enabling HW Breakpoints
This patch disables re-enabling of Hardware Breakpoint registers through
the signal handling code. This is now done during from hw_breakpoint_handler().
Original-patch-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: K.Prasad <prasad@linux.vnet.ibm.com> Reviewed-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>