refactor: moved drivers hdr files to include/drivers/nxp

NXP drivers header files are moved:
  - from:  drivers/nxp/<xx>/*.h
  - to  :  include/drivers/nxp/<xx>/*.h

To accommodate these changes each drivers makefiles
drivers/nxp/<xx>/xx.mk, are updated.

Signed-off-by: Pankaj Gupta <pankaj.gupta@nxp.com>
Change-Id: I3979c509724d87e3d631a03dbafda1ee5ef07d21
diff --git a/drivers/nxp/sd/sd_mmc.mk b/drivers/nxp/sd/sd_mmc.mk
index af91b1f..c83b1bd 100644
--- a/drivers/nxp/sd/sd_mmc.mk
+++ b/drivers/nxp/sd/sd_mmc.mk
@@ -1,5 +1,5 @@
 #
-# Copyright 2020 NXP
+# Copyright 2021 NXP
 #
 # SPDX-License-Identifier: BSD-3-Clause
 #
@@ -8,12 +8,10 @@
 
 ADD_SD_MMC	:= 1
 
-SD_DRIVERS_PATH		:=  ${PLAT_DRIVERS_PATH}/sd
-
-SD_MMC_BOOT_SOURCES	+= ${SD_DRIVERS_PATH}/sd_mmc.c \
+SD_MMC_BOOT_SOURCES	+= ${PLAT_DRIVERS_PATH}/sd/sd_mmc.c \
 			   drivers/io/io_block.c
 
-PLAT_INCLUDES		+= -I$(SD_DRIVERS_PATH)
+PLAT_INCLUDES		+= -I$(PLAT_DRIVERS_INCLUDE_PATH)/sd
 
 ifeq (${BL_COMM_SD_MMC_NEEDED},yes)
 BL_COMMON_SOURCES	+= ${SD_MMC_BOOT_SOURCES}