utility.py: add TDX_CMD_GET_QUOTE_V1_5

[intelzhongjie]

Add TDX definition for ioctl command TDX_CMD_GET_QUOTE_V1_5.
Also adjust the format of the related comments.

[intelzhongjie]

The definition of TDX_CMD_GET_QUOTE for TDX 1.5 is:
#define TDX_CMD_GET_QUOTE _IOR('T', 4, struct tdx_quote_req)

And the struct tdx_quote_req is defined as:

/* struct tdx_quote_req: Request struct for TDX_CMD_GET_QUOTE IOCTL.
 * @buf: Address of user buffer in the format of struct tdx_quote_buf.
 *	 Upon successful completion of IOCTL, output is copied back to
 *	 the same buffer (in struct tdx_quote_buf.data).
 * @len: Length of the Quote buffer.
 */
struct tdx_quote_req {
	__u64 buf;
	__u64 len;
};

So "sizeof(struct tdx_quote_req)" is "0b00010000".

[kenplusplus]

I will cleanup utility.py, could we move these type of definitions to the specific class like https://github.com/cc-api/cc-trusted-api/blob/a9181eba6e5e726466f778bb34015dad3e9fd8b3/vmsdk/python/cctrusted/cvm.py#L171?

[intelzhongjie]

I will cleanup utility.py, could we move these type of definitions to the specific class like

https://github.com/cc-api/cc-trusted-api/blob/a9181eba6e5e726466f778bb34015dad3e9fd8b3/vmsdk/python/cctrusted/cvm.py#L171

?

Updated as suggestions. Please review the latest version. Thanks!

[kenplusplus]

LGTM