nios2: flush_tlb_pid can just restore TLBMISC once

This matches the other functions in this file that use TLBMISC.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>

arch/nios2/mm/tlb.c

@@ -228,9 +228,9 @@ void flush_tlb_pid(unsigned long pid)
 		}
 
 		addr += PAGE_SIZE;
-
-		WRCTL(CTL_TLBMISC, org_misc);
 	}
+
+	WRCTL(CTL_TLBMISC, org_misc);
 }
 
 void flush_tlb_all(void)