treewide: Replace Maximumm with Maximum in Kconfig symbol description

Replace Maximumm with Maximum in Kconfig symbol description, fix a typo.
No functional change.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Michal Simek <michal.simek@amd.com>
diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig
index cc75bad..750b0bd 100644
--- a/drivers/block/Kconfig
+++ b/drivers/block/Kconfig
@@ -147,7 +147,7 @@
 if IDE
 
 config SYS_IDE_MAXBUS
-	hex "Maximumm number of IDE buses"
+	hex "Maximum number of IDE buses"
 	default 2
 	help
 	  This is the number of IDE buses provided by the board. Each one
diff --git a/drivers/mtd/Kconfig b/drivers/mtd/Kconfig
index 185e834..2b7f5e5 100644
--- a/drivers/mtd/Kconfig
+++ b/drivers/mtd/Kconfig
@@ -216,7 +216,7 @@
 	 STM32 MCU.
 
 config SYS_MAX_FLASH_SECT
-	int "Maximumm number of sectors on a flash chip"
+	int "Maximum number of sectors on a flash chip"
 	depends on MTD_NOR_FLASH || FLASH_CFI_DRIVER
 	default 512
 
diff --git a/env/Kconfig b/env/Kconfig
index aaf0b1f..4438f0b 100644
--- a/env/Kconfig
+++ b/env/Kconfig
@@ -60,7 +60,7 @@
 	  to store the environment settings.
 
 config ENV_MAX_ENTRIES
-	int "Maximumm number of entries in the environment hashtable"
+	int "Maximum number of entries in the environment hashtable"
 	default 512
 	help
 	  Maximum number of entries in the hash table that is used internally