package/uboot-tools: fix BR2_PACKAGE_HOST_UBOOT_TOOLS_ENVIMAGE_REDUNDANT help text

The help section of "BR2_PACKAGE_HOST_UBOOT_TOOLS_ENVIMAGE_REDUNDANT"
refers to U-Boot configuration option "CONFIG_ENV_SIZE_REDUND" which is
removed since U-Boot v2020.01, so remove this reference.

We may replace this with a reference to "CONFIG_ENV_OFFSET_REDUND" as
another indicator that a redundant environment image should be created.

This also fixes a minor typo in the same file.

Signed-off-by: Dominik Michael Rauh <dmrauh@posteo.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit c3ebeca4409d5848480cb7cf7b1d0c07b344ce96)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/uboot-tools/Config.in.host

@@ -45,7 +45,7 @@ config BR2_PACKAGE_HOST_UBOOT_TOOLS_ENVIMAGE
 	  Generate a valid binary environment image from a text file
 	  describing the key=value pairs of the environment.
 
-	  This option can be useful to build enviornment configurations
+	  This option can be useful to build environment configurations
 	  as part of a Linux / rootfs only defconfig instead of using
 	  post scripts. This supports a hardware use case of a single
 	  bootloader only defconfig but multiple Linux / rootfs
@@ -81,8 +81,8 @@ config BR2_PACKAGE_HOST_UBOOT_TOOLS_ENVIMAGE_REDUNDANT
 	  Some platforms define in their U-Boot configuration that the
 	  U-Boot environment should be duplicated in two locations (for
 	  extra safety). Check your U-Boot configuration for the
-	  CONFIG_ENV_ADDR_REDUND and CONFIG_ENV_SIZE_REDUND settings to
-	  see if this is the case for your platform.
+	  CONFIG_ENV_ADDR_REDUND and CONFIG_ENV_OFFSET_REDUND settings
+	  to see if this is the case for your platform.
 
 	  If it is the case, then you should enable this option to
 	  ensure that the U-Boot environment image generated by