Workaround Uncrustify parsing of "asm"

The following code:

 #ifndef asm
 #define asm __asm
 #endif

causes Uncrustify to stop correcting the rest of the file. This may be
due to parsing the "asm" keyword in the definition.

Work around this by wrapping the idiom in an *INDENT-OFF* comment
wherever it appears.

Signed-off-by: David Horstmann <david.horstmann@arm.com>
diff --git a/library/timing.c b/library/timing.c
index ca29e56..7f559be 100644
--- a/library/timing.c
+++ b/library/timing.c
@@ -33,9 +33,11 @@
 #error "This module only works on Unix and Windows, see MBEDTLS_TIMING_C in config.h"
 #endif
 
+/* *INDENT-OFF* */
 #ifndef asm
 #define asm __asm
 #endif
+/* *INDENT-ON* */
 
 #if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32)