Shift overflow compiler warning in endian macros

[skliper]

Is your feature request related to a problem? Please describe.

cfe/modules/core_api/fsw/inc/cfe_endian.h:66:12: error: result of '13398 << 24' requires 39 bits to represent, but 'int' only has 32 bits [-Werror=shift-overflow=]
((((n) << 24) & 0xFF000000) | (((n) << 8) & 0x00FF0000) | (((n) >> 8) & 0x0000FF00) | (((n) >> 24) & 0x000000FF))

From:

cFE/modules/core_api/fsw/inc/cfe_endian.h

Lines 64 to 66 in 10898c9

	#define CFE_MAKE_BIG16(n) ((((n) << 8) & 0xFF00) | (((n) >> 8) & 0x00FF))
	#define CFE_MAKE_BIG32(n) \
	((((n) << 24) & 0xFF000000) | (((n) << 8) & 0x00FF0000) | (((n) >> 8) & 0x0000FF00) | (((n) >> 24) & 0x000000FF))

Describe the solution you'd like
Mask, then shift.

Describe alternatives you've considered
None

Additional context

• Implement single endianness handling pattern #1209

Or really transition to serializer/deserializaer concepts.

Requester Info
Jacob Hageman - NASA/GSFC