staging: rtl8723bs: replace non-standard BITn macros with BIT(n)

staging: rtl8723bs: replace non-standard BITn macros with BIT(n)

Remove the local BIT0-BIT31 macro definitions from osdep_service.h
and replace all usages with the kernel's BIT(n) macro from <linux/bitops.h>.

NOTE: DYNAMIC_BB_DYNAMIC_TXPWR is defined as BIT2 and used
in a bitwise NOT expression. Migrating to BIT(2) causes an
-Werror=overflow warning due to the unsigned long result not
fitting in u32. This instance has been left unconverted.

Compile-tested only.

Signed-off-by: Michael Steinmötzger <m.steinmoetzger@gmail.com>
Link: https://patch.msgid.link/20260509032202.146240-1-m.steinmoetzger@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>