sh: Change __nosave_XXX symbols to long

sh: Change __nosave_XXX symbols to long

This patch changes the:
 - __nosave_begin
 - __nosave_end
symbols from 'void' to 'long' as required by the latest
Gcc (4.5.2) which raises the compilation error:

cc1: warnings being treated as errors
arch/sh/kernel/swsusp.c: In function 'pfn_is_nosave':
arch/sh/kernel/swsusp.c:24:28: error: taking address of expression of type 'void'
arch/sh/kernel/swsusp.c:25:26: error: taking address of expression of type 'void'
arch/sh/kernel/swsusp.c:25:26: error: taking address of expression of type 'void'
arch/sh/kernel/swsusp.c:25:26: error: taking address of expression of type 'void'

Signed-off-by: Francesco Virlinzi <francesco.virlinzi@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>