Remove exra whitespace from files (#189)

* Remove multiple newlines at the end of files
* Remove the whitespace from the end of lines

arch/misoc/include/.gitignore

@@ -1,3 +1,2 @@
 /board
 /chip
-

arch/misoc/src/lm32/lm32_copystate.c

@@ -84,4 +84,3 @@ void lm32_copystate(uint32_t *dest, uint32_t *src)
         }
     }
 }
-

arch/misoc/src/minerva/Make.defs

@@ -52,4 +52,3 @@ CHIP_CSRCS += minerva_irq.c minerva_releasepending.c minerva_releasestack.c
 CHIP_CSRCS += minerva_stackframe.c minerva_swint.c minerva_unblocktask.c
 CHIP_CSRCS += minerva_reprioritizertr.c minerva_schedulesigaction.c minerva_sigdeliver.c
 CHIP_CSRCS += minerva_flushcache.c minerva_doexceptions.c
-

arch/misoc/src/minerva/minerva_dumpstate.c

@@ -229,4 +229,3 @@ void minerva_dumpstate(void)
 }
 
 #endif  /* CONFIG_ARCH_STACKDUMP */
-

arch/misoc/src/minerva/minerva_syscall.S

@@ -88,7 +88,7 @@ sys_call5:	/* a0 holds the syscall number, arguments in a1, a2, a3, a4 and a5 */
 	/* Issue the ECALL opcode to perform a SW interrupt to the OS */
 
 	ecall
-	
+
 	/* The actual interrupt may not a occur for a few more cycles.  Let's
 	 * put a few nop's here in hope that the SW interrupt occurs during
 	 * the sequence of nops.