x86/pci: Mark local functions as 'static'

Two functions in this file are global but have no prototype in
a header and are not called from elsewhere, so they should
be static:

arch/x86/pci/ce4100.c:86:6: error: no previous prototype for 'sata_revid_init' [-Werror=missing-prototypes]
arch/x86/pci/ce4100.c:175:5: error: no previous prototype for 'bridge_read' [-Werror=missing-prototypes]
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Link: https://lore.kernel.org/all/20230516193549.544673-3-arnd%40kernel.org

arch/x86/pci/ce4100.c

@@ -83,7 +83,7 @@ static void ehci_reg_read(struct sim_dev_reg *reg, u32 *value)
 		*value |= 0x100;
 }
 
-void sata_revid_init(struct sim_dev_reg *reg)
+static void sata_revid_init(struct sim_dev_reg *reg)
 {
 	reg->sim_reg.value = 0x01060100;
 	reg->sim_reg.mask = 0;
@@ -172,7 +172,7 @@ static inline void extract_bytes(u32 *value, int reg, int len)
 	*value &= mask;
 }
 
-int bridge_read(unsigned int devfn, int reg, int len, u32 *value)
+static int bridge_read(unsigned int devfn, int reg, int len, u32 *value)
 {
 	u32 av_bridge_base, av_bridge_limit;
 	int retval = 0;