tile: export a handful of symbols appropriately

This was shown up by running with "allmodconfig". I used
EXPORT_SYMBOL() to match existing conventions in files that
were already exporting symbols, or that were exported that way
by other architectures, and otherwise EXPORT_SYMBOL_GPL().

Signed-off-by: Chris Metcalf <[e-mail]>

arch/tile/kernel/reboot.c

···
 #include <linux/reboot.h>
 #include <linux/smp.h>
 #include <linux/pm.h>
+#include <linux/export.h>
 #include <asm/page.h>
 #include <asm/setup.h>
 #include <hv/hypervisor.h>
···
 
 /* No interesting distinction to be made here. */
 void (*pm_power_off)(void) = NULL;
+EXPORT_SYMBOL(pm_power_off);

arch/tile/kernel/stack.c

···
 {
 	save_stack_trace_tsk(NULL, trace);
 }
+EXPORT_SYMBOL_GPL(save_stack_trace);
 
 #endif
 

arch/tile/lib/cacheflush.c

···
  *   more details.
  */
 
+#include <linux/export.h>
 #include <asm/page.h>
 #include <asm/cacheflush.h>
 #include <arch/icache.h>
···
 	__insn_mtspr(SPR_DSTREAM_PF, old_dstream_pf);
 #endif
 }
+EXPORT_SYMBOL_GPL(finv_buffer_remote);

arch/tile/lib/cpumask.c

···
 #include <linux/ctype.h>
 #include <linux/errno.h>
 #include <linux/smp.h>
+#include <linux/export.h>
 
 /*
  * Allow cropping out bits beyond the end of the array.
···
 	} while (*bp != '\0' && *bp != '\n');
 	return 0;
 }
+EXPORT_SYMBOL(bitmap_parselist_crop);

arch/tile/lib/exports.c

···
 EXPORT_SYMBOL(hv_dev_close);
 EXPORT_SYMBOL(hv_sysconf);
 EXPORT_SYMBOL(hv_confstr);
+EXPORT_SYMBOL(hv_get_rtc);
+EXPORT_SYMBOL(hv_set_rtc);
 
 /* libgcc.a */
 uint32_t __udivsi3(uint32_t dividend, uint32_t divisor);

arch/tile/mm/homecache.c

···
 		__set_pte(ptep, pte_set_home(pteval, home));
 	}
 }
+EXPORT_SYMBOL(homecache_change_page_home);
 
 struct page *homecache_alloc_pages(gfp_t gfp_mask,
 				   unsigned int order, int home)