openocd: fix simple cases of Yoda condition

There are ~900 Yoda conditions to be aligned to the coding style.
For recurrent Yoda conditions it's preferable using a trivial
script in order to minimize the review effort.
E.g. comparison of uppercase macro/enum with lowercase variable:
	- ...(ERROR_OK == retval)...
	+ ...(retval == ERROR_OK)...

Patch generated automatically with the command:
	sed -i \
	's/(\([A-Z][A-Z0-9_]*\) \([=!]=\) \([a-z][a-z0-9_]*\))/(\3 \2 \1)/g' \
	$(find src/ -type f)

While there, remove the braces {} around a single statement block
to prevent warning from checkpatch.

Change-Id: If585b0a4b4578879c87b2dd74d9e0025e275ec6b
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/6354
Tested-by: jenkins
Reviewed-by: Xiang W <wxjstz@126.com>

src/target/mips_mips64.c

@@ -923,7 +923,7 @@ static int mips_mips64_read_memory(struct target *target, uint64_t address,
 	retval = mips64_pracc_read_mem(ejtag_info, address, size, count,
 				       (void *)t);
 
-	if (ERROR_OK != retval) {
+	if (retval != ERROR_OK) {
 		LOG_ERROR("mips64_pracc_read_mem filed");
 		goto read_done;
 	}