kmscon: update to 9.3.1. #67754

Job	Run time
Lint templates	42s
Build packages (i686, i686, glibc, linux/386, 1)	3m 44s
Build packages (aarch64, x86_64, glibc, linux/amd64, 0)	3m 35s
Build packages (x86_64, x86_64, glibc, linux/amd64, 1)	4m 26s
Build packages (armv6l-musl, x86_64-musl, musl, linux/amd64, 0)	3m 48s
Build packages (armv7l, x86_64, glibc, linux/amd64, 0)	4m 4s
Build packages (x86_64-musl, x86_64-musl, musl, linux/amd64, 1)	4m 35s
Build packages (aarch64-musl, x86_64-musl, musl, linux/amd64, 0)	4m 29s
	29m 23s

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