doc: board: typo GIUD Microchip MPFS Icicle Kit doc

%s/GIUD/GUID/

Fixes: 9e550e18305f ("doc: board: Add Microchip MPFS Icicle Kit doc")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Bin Meng <bmeng@tinylab.org>
diff --git a/doc/board/microchip/mpfs_icicle.rst b/doc/board/microchip/mpfs_icicle.rst
index a4b10c6..09c2c6a 100644
--- a/doc/board/microchip/mpfs_icicle.rst
+++ b/doc/board/microchip/mpfs_icicle.rst
@@ -209,7 +209,7 @@
 ~~~~~~~~~
 
 The HSS always picks up HSS payload from a GPT partition with
-GIUD type "21686148-6449-6E6F-744E-656564454649" or sector '0' of the eMMC if no
+GUID type "21686148-6449-6E6F-744E-656564454649" or sector '0' of the eMMC if no
 GPT partition.
 
 Booting
@@ -460,7 +460,7 @@
 ~~~~~~~~~
 
 The HSS always picks up the HSS payload from a GPT partition with
-GIUD type "21686148-6449-6E6F-744E-656564454649" or sector '0' of the eMMC if no
+GUID type "21686148-6449-6E6F-744E-656564454649" or sector '0' of the eMMC if no
 GPT partition.
 
 Sample boot log from MPFS Icicle Kit