dm: i2c: use CONFIG_IS_ENABLED macro for DM_I2C/DM_I2C_GPIO

Use CONFIG_IS_ENABLED() macro, which provides more convenient
way to check $(SPL)DM_I2C/$(SPL)DM_I2C_GPIO configs
for both SPL and U-Boot proper.

CONFIG_IS_ENABLED(DM_I2C) expands to:
- 1 if CONFIG_SPL_BUILD is undefined and CONFIG_DM_I2C is set to 'y',
- 1 if CONFIG_SPL_BUILD is defined and CONFIG_SPL_DM_I2C is set to 'y',
- 0 otherwise.

All occurences were replaced automatically using these bash cmds:
$ find . -type f -exec sed -i
     's/ifndef CONFIG_DM_I2C/if !CONFIG_IS_ENABLED(DM_I2C)/g' {} +
$ find . -type f -exec sed -i
    's/ifdef CONFIG_DM_I2C/if CONFIG_IS_ENABLED(DM_I2C)/g' {} +
$ find . -type f -exec sed -i
    's/defined(CONFIG_DM_I2C)/CONFIG_IS_ENABLED(DM_I2C)/g' {} +
$ find . -type f -exec sed -i
    's/ifndef CONFIG_DM_I2C_GPIO/if !CONFIG_IS_ENABLED(DM_I2C_GPIO)/g' {} +
$ find . -type f -exec sed -i
    's/ifdef CONFIG_DM_I2C_GPIO/if CONFIG_IS_ENABLED(DM_I2C_GPIO)/g' {} +
$ find . -type f -exec sed -i
    's/defined(CONFIG_DM_I2C_GPIO)/CONFIG_IS_ENABLED(DM_I2C_GPIO)/g' {} +

Reviewed-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Igor Opaniuk <igor.opaniuk@foundries.io>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/board/ti/am335x/board.c b/board/ti/am335x/board.c
index 2cd0a12..bc1657e 100644
--- a/board/ti/am335x/board.c
+++ b/board/ti/am335x/board.c
@@ -77,7 +77,7 @@
 void do_board_detect(void)
 {
 	enable_i2c0_pin_mux();
-#ifndef CONFIG_DM_I2C
+#if !CONFIG_IS_ENABLED(DM_I2C)
 	i2c_init(CONFIG_SYS_OMAP24_I2C_SPEED, CONFIG_SYS_OMAP24_I2C_SLAVE);
 #endif
 	if (ti_i2c_eeprom_am_get(CONFIG_EEPROM_BUS_ADDRESS,
@@ -336,7 +336,7 @@
 	if (board_is_bone() && !strncmp(board_ti_get_rev(), "00A1", 4))
 		return;
 
-#ifndef CONFIG_DM_I2C
+#if !CONFIG_IS_ENABLED(DM_I2C)
 	if (i2c_probe(TPS65217_CHIP_PM))
 		return;
 #else
@@ -435,7 +435,7 @@
 	 * 1.10V.  For MPU voltage we need to switch based on
 	 * the frequency we are running at.
 	 */
-#ifndef CONFIG_DM_I2C
+#if !CONFIG_IS_ENABLED(DM_I2C)
 	if (i2c_probe(TPS65910_CTRL_I2C_ADDR))
 		return;
 #else
@@ -469,7 +469,7 @@
 
 	if (first_time) {
 		enable_i2c0_pin_mux();
-#ifndef CONFIG_DM_I2C
+#if !CONFIG_IS_ENABLED(DM_I2C)
 		i2c_init(CONFIG_SYS_OMAP24_I2C_SPEED,
 			 CONFIG_SYS_OMAP24_I2C_SLAVE);
 #endif
diff --git a/board/ti/am335x/mux.c b/board/ti/am335x/mux.c
index 6fb2c00..03adcd2 100644
--- a/board/ti/am335x/mux.c
+++ b/board/ti/am335x/mux.c
@@ -333,7 +333,7 @@
 {
 	unsigned short val;
 
-#ifndef CONFIG_DM_I2C
+#if !CONFIG_IS_ENABLED(DM_I2C)
 	if (i2c_probe(I2C_CPLD_ADDR))
 		return PROFILE_NONE;