post: Remove duplicate newlines

Drop all duplicate newlines. No functional change.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
diff --git a/post/drivers/flash.c b/post/drivers/flash.c
index 21e2f94..7638a99 100644
--- a/post/drivers/flash.c
+++ b/post/drivers/flash.c
@@ -12,7 +12,6 @@
 #include <post.h>
 #include <flash.h>
 
-
 /*
  * This code will walk over the declared sectors erasing them,
  * then programming them, then verifying the written contents.
diff --git a/post/drivers/memory.c b/post/drivers/memory.c
index 8d4ae6f..2e41c46 100644
--- a/post/drivers/memory.c
+++ b/post/drivers/memory.c
@@ -157,7 +157,6 @@
 #warning "Injecting address line errors for testing purposes"
 #endif
 
-
 /*
  * This function performs a double word move from the data at
  * the source pointer to the location at the destination pointer.
@@ -199,7 +198,6 @@
 };
 const unsigned long long otherpattern = 0x0123456789abcdefULL;
 
-
 static int memory_post_dataline(unsigned long long * pmem)
 {
 	unsigned long long temp64 = 0;
diff --git a/post/lib_powerpc/cpu_asm.h b/post/lib_powerpc/cpu_asm.h
index 75cf71b..d1e3f68 100644
--- a/post/lib_powerpc/cpu_asm.h
+++ b/post/lib_powerpc/cpu_asm.h
@@ -203,5 +203,4 @@
 #define ASM_STSWI(rd, rs, simm)		ASM_11IF(OP_STSWI, rd, rs, simm)
 #define ASM_STSWX(rd, rs1, rs2)		ASM_12(OP_STSWX, rd, rs1, rs2)
 
-
 #endif /* _CPU_ASM_H */
diff --git a/post/tests.c b/post/tests.c
index 208710a..cdd088a 100644
--- a/post/tests.c
+++ b/post/tests.c
@@ -43,7 +43,6 @@
 
 extern void sysmon_reloc (void);
 
-
 struct post_test post_list[] =
 {
 #if CFG_POST & CFG_SYS_POST_OCM