[PNPBIOS] Move low level code into a separate file

This patch moves the low level bios calls to a separate file, 
"bioscalls.c".  It is a cleanup that will improve organization of the
pnpbios driver code.

drivers/pnp/pnpbios/Makefile

@@ -4,4 +4,4 @@
 
 pnpbios-proc-$(CONFIG_PROC_FS) = proc.o
 
-obj-y := core.o rsparser.o $(pnpbios-proc-y)
+obj-y := core.o bioscalls.o rsparser.o $(pnpbios-proc-y)

drivers/pnp/pnpbios/pnpbios.h

@@ -6,3 +6,6 @@ extern int pnpbios_parse_data_stream(struct pnp_dev *dev, struct pnp_bios_node *
 extern int pnpbios_read_resources_from_node(struct pnp_resource_table *res, struct pnp_bios_node * node);
 extern int pnpbios_write_resources_to_node(struct pnp_resource_table *res, struct pnp_bios_node * node);
 extern void pnpid32_to_pnpid(u32 id, char *str);
+
+extern void pnpbios_print_status(const char * module, u16 status);
+extern int pnpbios_probe_installation(void);

include/linux/pnpbios.h

@@ -146,6 +146,7 @@ extern int pnp_bios_get_stat_res (char *info);
 extern int pnp_bios_isapnp_config (struct pnp_isa_config_struc *data);
 extern int pnp_bios_escd_info (struct escd_info_struc *data);
 extern int pnp_bios_read_escd (char *data, u32 nvram_base);
+extern int pnp_bios_dock_station_info(struct pnp_docking_station_info *data);
 #if needed
 extern int pnp_bios_get_event (u16 *message);
 extern int pnp_bios_send_message (u16 message);