Remove unnecessary "sys/" from errno.h include. (#5326)
Remove unnecessary "sys/" from errno.h include. (#5326)

Looks like it's not needed, and most systems' manpages say to just
include <errno.h>.
project-chip/connectedhomeip,nestlabs/connectedhomeip,nestlabs/connectedhomeip,project-chip/connectedhomeip,project-chip/connectedhomeip,nestlabs/connectedhomeip,project-chip/connectedhomeip,nestlabs/connectedhomeip,nestlabs/connectedhomeip,project-chip/connectedhomeip,project-chip/connectedhomeip,nestlabs/connectedhomeip,nestlabs/connectedhomeip