package/mrouted: fix typos and grammar

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Cc: Federico Pellegrin <fede@evolware.org>
[yann.morin.1998@free.fr: s/is/are/ (noticed by Federico)]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
(cherry picked from commit 271ea8be96abf1b30b999075500aaf91f992c25c)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/mrouted/Config.in

@@ -8,6 +8,7 @@ config BR2_PACKAGE_MROUTED
 	  source. This package comes with mrouted and mroutectl.  Where
 	  the latter is used to query status and control operation.
 
-	  Note: at least two interfaces with MULTICAST flag is requried.
+	  Note: at least two interfaces with MULTICAST flag are
+	  required.
 
 	  http://github.com/troglobit/mrouted

package/mrouted/mrouted.mk

@@ -23,7 +23,7 @@ define MROUTED_INSTALL_INIT_SYSTEMD
 		$(TARGET_DIR)/usr/lib/systemd/system/mrouted.service
 endef
 
-# We will asume that CONFIG_NET and CONFIG_INET are already
+# We will assume that CONFIG_NET and CONFIG_INET are already
 # set in the kernel configuration provided by the user.
 define MROUTED_LINUX_CONFIG_FIXUPS
 	$(call KCONFIG_ENABLE_OPT,CONFIG_IP_MULTICAST)