[PATCH v2] dtc: Remove unused variable in flat_read_mem_reserve

The *p variable is declared and used to save inb->ptr, however p is
later never used.  This has been the case since commit 6c0f3676 and can
lead to build failures with -Werror=unused-but-set-variable:

	flattree.c: In function 'flat_read_mem_reserve':
	flattree.c:700:14: error: variable 'p' set but not used [-Werror=unused-but-set-variable]
	cc1: all warnings being treated as errors
	make: *** [flattree.o] Error 1

Remove the variable.

Signed-off-by: Josh Boyer <redacted>

---

diff --git a/flattree.c b/flattree.c
index ead0332..28d0b23 100644
--- a/flattree.c
+++ b/flattree.c

@@ -697,7 +697,6 @@ static struct reserve_info *flat_read_mem_reserve(struct inbuf *inb)
 {
 	struct reserve_info *reservelist = NULL;
 	struct reserve_info *new;
-	const char *p;
 	struct fdt_reserve_entry re;
 
 	/*

@@ -706,7 +705,6 @@ static struct reserve_info *flat_read_mem_reserve(struct inbuf *inb)
 	 *
 	 * First pass, count entries.
 	 */
-	p = inb->ptr;
 	while (1) {
 		flat_read_chunk(inb, &re, sizeof(re));
 		re.address  = fdt64_to_cpu(re.address);