staging: rtl8723bs: replace type and rename the chip_type field

staging: rtl8723bs: replace type and rename the chip_type field

The 'chip_type' field always accepts one value from the
hal_chip_type_e enumeration: TEST_CHIP or NORMAL_CHIP (FPGA is never
used).
Changing this field's type to bool will allow it to be used directly in
conditions without the need for wrapped macros.

The new type requires a corresponding variable name, so rename it to
'chip_normal' to improve code readability.

Signed-off-by: Nikolay Kulikov <nikolayof23@gmail.com>
Link: https://patch.msgid.link/20260502220056.59815-3-nikolayof23@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>