Fix spelling mistakes using codespell

This commit corrects various spelling mistakes throughout the
repository. The corrections were made automatically using `codespell`[1]
tool.

[1]: https://github.com/codespell-project/codespell

Change-Id: I25415165df192cfc3bd1405aca81bfa5bf2f7a63
Signed-off-by: Manojkiran Eda <manojkiran.eda@gmail.com>
diff --git a/src/dsp/firmware_update.c b/src/dsp/firmware_update.c
index 9ebb970..8b4a1ed 100644
--- a/src/dsp/firmware_update.c
+++ b/src/dsp/firmware_update.c
@@ -533,7 +533,7 @@
 		return PLDM_ERROR_INVALID_DATA;
 	}
 
-	// Assuming atleast 1 byte of VendorDefinedDescriptorData
+	// Assuming at least 1 byte of VendorDefinedDescriptorData
 	if (length < (sizeof(struct pldm_vendor_defined_descriptor_title_data) +
 		      entry->vendor_defined_descriptor_title_str_len)) {
 		return PLDM_ERROR_INVALID_LENGTH;