HALCOGEN: HALCoGen creates inconsitent include guards

• HL_reg_dma.h: #define __REG_DMA_H__
• HL_sys_dma.h: #define DMA_H_
• HL_pom.h: #define __POM_H__

So it is

1. remove "HL"-prefix, two underscores, file name in uppercase and append "_H_" 
2. remove "HL"-prefix, remove a infix, uppercase the Suffix and append "_H_"
3. remove "HL"-prefix, uppercase the suffix and append "_H_"

Working with an inconsitency like this is very uncomfortable in a large code base.

Would it be possible that you create a HALCoGen update, that creates a include guard naming schema you can rely on?