mmc-utils: update to latest git head

Remove already upstreamed patches, add another one from mailing-list.

Signed-off-by: Michael Heimpold <mhei@heimpold.de>

utils/mmc-utils/patches/0010-One-further-optimization-of-trimming-routine.patch

@@ -0,0 +1,35 @@
+From 3539243dcab7b84bb8a45e2c2da80e162284bffc Mon Sep 17 00:00:00 2001
+From: Michael Heimpold <mhei@heimpold.de>
+Date: Sat, 8 Dec 2018 10:43:01 +0100
+Subject: [PATCH] One further optimization of trimming routine
+
+The last change to the trimming routine made it more efficient,
+however, we can even get rid of the memmove() as we leave the
+function with strdup() anyway.
+
+Signed-off-by: Michael Heimpold <mhei@heimpold.de>
+Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
+---
+ lsmmc.c | 5 ++---
+ 1 file changed, 2 insertions(+), 3 deletions(-)
+
+diff --git a/lsmmc.c b/lsmmc.c
+index 06cc0b8..05d59e8 100644
+--- a/lsmmc.c
++++ b/lsmmc.c
+@@ -393,10 +393,9 @@ char *read_file(char *name)
+ 		start++;
+ 		len--;
+ 	}
+-	memmove(line, start, len);
+-	line[len] = '\0';
+ 
+-	return strdup(line);
++	start[len] = '\0';
++	return strdup(start);
+ }
+ 
+ /* Hexadecimal string parsing functions */
+-- 
+2.17.1
+