Remove empty lines at end of file

Used command line to remove empty lines at end of file:
find . -type f -exec sed -i -e :a -e '/^\n*$/{$d;N;};/\n$/ba' {} \;

Change-Id: I816ac9666b6dbb7c7e47843672f0d5cc499766a3
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: http://review.coreboot.org/10446
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

src/arch/riscv/include/arch/cpu.h

@@ -50,4 +50,3 @@ struct cpuinfo_riscv {
 
 struct cpu_info *cpu_info(void);
 #endif /* __ARCH_CPU_H__ */
-

src/arch/riscv/include/arch/header.ld

@@ -30,4 +30,3 @@ ENTRY(_start)
 #else
 ENTRY(stage_entry)
 #endif
-

src/arch/riscv/include/arch/hlt.h

@@ -2,5 +2,3 @@ static inline __attribute__((always_inline)) void hlt(void)
 {
         while(1);
 }
-
-

src/arch/riscv/include/arch/memlayout.h

@@ -28,4 +28,3 @@
 /* TODO: Need to add DMA_COHERENT region like on ARM? */
 
 #endif /* __ARCH_MEMLAYOUT_H */
-

src/arch/riscv/prologue.inc

@@ -19,4 +19,3 @@
 
 .section ".rom.data", "a", @progbits
 .section ".rom.text", "ax", @progbits
-