Documentation: Fix spelling errors

These issues were found and fixed by codespell, a useful tool for
finding spelling errors.

Signed-off-by: Martin Roth <martin@coreboot.org>
Change-Id: If2a8e97911420c19e9365d5c28810b998f2c2ac8
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58078
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

Documentation/security/intel/txt.md

@@ -37,7 +37,7 @@ More details can be found in the [Intel TXT IBB] chapter.
 
 ### Measurements
 The IBBs (Initial Boot Blocks) are measured into TPM's PCR0 by the BIOS [ACM]
-before the CPU reset vector is executed. To indentify the regions that need
+before the CPU reset vector is executed. To identify the regions that need
 to be measured, the [FIT] contains one ore multiple *Type 7* entries, that
 point to the IBBs.
 

Documentation/security/smm.md

@@ -1,4 +1,4 @@
-# x86 System Managment Mode
+# x86 System Management Mode
 
 ## Introduction
 
@@ -6,7 +6,7 @@ The code running in System Management Mode (SMM) provides runtime services
 to applications running in [ring0]. It has a higher privilege level than
 [ring0] and resides in the SMRAM region which cannot be accessed from [ring0].
 
-SMM can be entered by issuing System Managment Interrupts (SMIs).
+SMM can be entered by issuing System Management Interrupts (SMIs).
 
 ## Secure data exchange
 

Documentation/security/vboot/measured_boot.md

@@ -9,7 +9,7 @@ The "Initial Boot Block" or "Core Root of Trust for Measurement" is the first
 code block loaded at reset vector and measured by a DRTM solution.
 In case SRTM mode is active, the IBB measures itself before measuring the next
 code block. In coreboot, cbfs files which are part of the IBB are identified
-by a metatdata tag. This makes it possible to have platform specific IBB
+by a metadata tag. This makes it possible to have platform specific IBB
 measurements without hardcoding them.
 
 ## Known Limitations