treewide: capitalize 'BIOS'

Also replace 'BIOS' by coreboot when the image is 'coreboot.rom'.

Change-Id: I8303b7baa9671f19a036a59775026ffd63c85273
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38932
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

src/soc/intel/apollolake/chip.c

@@ -733,7 +733,7 @@ void platform_fsp_silicon_init_params_cb(FSPS_UPD *silupd)
 	/* Enable Audio clk gate and power gate */
 	silconfig->HDAudioClkGate = cfg->hdaudio_clk_gate_enable;
 	silconfig->HDAudioPwrGate = cfg->hdaudio_pwr_gate_enable;
-	/* Bios config lockdown Audio clk and power gate */
+	/* BIOS config lockdown Audio clk and power gate */
 	silconfig->BiosCfgLockDown = cfg->hdaudio_bios_config_lockdown;
 	if (CONFIG(SOC_INTEL_GLK))
 		glk_fsp_silicon_init_params_cb(cfg, silconfig);

src/soc/intel/common/block/fast_spi/fast_spi.c

@@ -237,7 +237,7 @@ void fast_spi_cache_bios_region(void)
 
 	/* LOCAL APIC default address is 0xFEE0000, bios_size over 16MB will
 	 * cause memory type conflict when setting memory type to write
-	 * protection, so limit the cached bios region to be no more than 16MB.
+	 * protection, so limit the cached BIOS region to be no more than 16MB.
 	 * */
 	bios_size = MIN(bios_size, 16 * MiB);
 	if (bios_size <= 0)

src/soc/intel/common/pch/lockdown/lockdown.c

@@ -69,12 +69,12 @@ static void fast_spi_lockdown_cfg(int chipset_lockdown)
 	/* Lock FAST_SPIBAR */
 	fast_spi_lock_bar();
 
-	/* Set Bios Interface Lock, Bios Lock */
+	/* Set BIOS Interface Lock, BIOS Lock */
 	if (chipset_lockdown == CHIPSET_LOCKDOWN_COREBOOT) {
-		/* Bios Interface Lock */
+		/* BIOS Interface Lock */
 		fast_spi_set_bios_interface_lock_down();
 
-		/* Bios Lock */
+		/* BIOS Lock */
 		fast_spi_set_lock_enable();
 	}
 }

src/soc/intel/skylake/lockdown.c

@@ -22,7 +22,7 @@
 
 static void lpc_lockdown_config(int chipset_lockdown)
 {
-	/* Set Bios Interface Lock, Bios Lock */
+	/* Set BIOS Interface Lock, BIOS Lock */
 	if (chipset_lockdown == CHIPSET_LOCKDOWN_COREBOOT) {
 		lpc_set_bios_interface_lock_down();
 		lpc_set_lock_enable();