Add libsdl2-dev to chip-build image

[andy31415]

This would allow validation that the -with-ui images work for linux, to allow compilation validation for imgui UI builds.

[github-actions]

PR #25232: Size comparison from 8d4fbed to dad3f17

Decreases (1 build for cc32xx)

platform	target	config	section	8d4fbed	dad3f17	change	% change
cc32xx	lock	CC3235SF_LAUNCHXL	.debug_info	20254061	20254060	-1	-0.0

Full report (1 build for cc32xx)

platform	target	config	section	8d4fbed	dad3f17	change	% change
cc32xx	lock	CC3235SF_LAUNCHXL		0	0	0	0.0
			(read only)	642545	642545	0	0.0
			(read/write)	203664	203664	0	0.0
			.ARM.attributes	44	44	0	0.0
			.ARM.exidx	8	8	0	0.0
			.bss	197064	197064	0	0.0
			.comment	194	194	0	0.0
			.data	1480	1480	0	0.0
			.debug_abbrev	930168	930168	0	0.0
			.debug_aranges	87272	87272	0	0.0
			.debug_frame	299752	299752	0	0.0
			.debug_info	20254061	20254060	-1	-0.0
			.debug_line	2655143	2655143	0	0.0
			.debug_loc	2795383	2795383	0	0.0
			.debug_ranges	281592	281592	0	0.0
			.debug_str	3017553	3017553	0	0.0
			.ramVecs	780	780	0	0.0
			.resetVecs	64	64	0	0.0
			.rodata	105817	105817	0	0.0
			.shstrtab	232	232	0	0.0
			.stab	204	204	0	0.0
			.stabstr	441	441	0	0.0
			.stack	2048	2048	0	0.0
			.strtab	377610	377610	0	0.0
			.symtab	256144	256144	0	0.0
			.text	534604	534604	0	0.0