[Feature]: Refactor ProviderValueAsAscii() to allocate buffer with right size for each setting

[wenbhou]

Feature Overview

For some DFCI setting, ProviderValueAsAscii function now uses predefined macros to allocate buffer which is not flexible if we add new setting with bigger size, causing string truncated.
The new feature is to refactor the function to remove following macros and allocate buffer with right size for each setting.

#define ENABLED_STRING_SIZE                (9)
#define ASSET_TAG_STRING_MAX_SIZE          (22)
#define SECURE_BOOT_ENUM_STRING_SIZE       (20)
#define SYSTEM_PASSWORD_STATE_STRING_SIZE  (30)
#define USB_PORT_STATE_STRING_SIZE         (20)

Solution Overview

Calculate new size of each setting and allocate buffer with the new size, then copy new value to the buffer.

Alternatives Considered

No response

Urgency

Low

Are you going to implement the feature request?

I will implement the feature

Do you need maintainer feedback?

No maintainer feedback needed

Anything else?

No response