[Silabs] [EFR32] Refactor 917 NCP and 917 SoC Bluetooth to use the same implementation

[shgutte]

Problem
There are only some code changes in RS9116 and RS9117 BLE implementation, which is the code's repetition.

Fixes added
Refactored In such a way that one file will work for both RS9116 and RS9117 implementation.

Testing
I tested with all combinations of RS9116 and RS9117.

[github-actions]

PR #26390: Size comparison from 42138c4 to aebe438

Increases (1 build for cc32xx)

platform	target	config	section	42138c4	aebe438	change	% change
cc32xx	lock	CC3235SF_LAUNCHXL	.debug_info	19603114	19603115	1	0.0

Full report (1 build for cc32xx)

platform	target	config	section	42138c4	aebe438	change	% change
cc32xx	lock	CC3235SF_LAUNCHXL		0	0	0	0.0
			(read only)	604866	604866	0	0.0
			(read/write)	204156	204156	0	0.0
			.ARM.attributes	44	44	0	0.0
			.ARM.exidx	8	8	0	0.0
			.bss	197568	197568	0	0.0
			.comment	206	206	0	0.0
			.data	1468	1468	0	0.0
			.debug_abbrev	957098	957098	0	0.0
			.debug_aranges	101104	101104	0	0.0
			.debug_frame	341416	341416	0	0.0
			.debug_info	19603114	19603115	1	0.0
			.debug_line	2666235	2666235	0	0.0
			.debug_line_str	513	513	0	0.0
			.debug_loc	33340	33340	0	0.0
			.debug_loclists	1488792	1488792	0	0.0
			.debug_ranges	4984	4984	0	0.0
			.debug_rnglists	94291	94291	0	0.0
			.debug_str	3108084	3108084	0	0.0
			.ramVecs	780	780	0	0.0
			.resetVecs	64	64	0	0.0
			.rodata	104346	104346	0	0.0
			.shstrtab	265	265	0	0.0
			.stack	2048	2048	0	0.0
			.strtab	482872	482872	0	0.0
			.symtab	287120	287120	0	0.0
			.text	498396	498396	0	0.0