imx: bundle correct SDMA firmware for i.MX 7 boards

Import sdma-imx7d.bin from linux-firmware repository at commit:
55edf5202154: ("imx: sdma: update firmware to v3.5/v4.5")

Cortex-A7 boards (i.MX 7 based) use different SDMA firmware than i.MX 6
boards - bundle the correct files in per-subtarget kernel options.

Signed-off-by: Lech Perczak <lech.perczak@gmail.com>

target/linux/imx/config-5.15

@@ -158,8 +158,6 @@ CONFIG_EXT4_FS=y
 CONFIG_EXT4_FS_POSIX_ACL=y
 CONFIG_EXT4_FS_SECURITY=y
 CONFIG_EXTCON=y
-CONFIG_EXTRA_FIRMWARE="imx/sdma/sdma-imx6q.bin"
-CONFIG_EXTRA_FIRMWARE_DIR="firmware"
 CONFIG_F2FS_FS=y
 # CONFIG_FEC is not set
 CONFIG_FIXED_PHY=y

target/linux/imx/cortexa7/config-default

@@ -14,6 +14,8 @@ CONFIG_CMA_AREAS=7
 # CONFIG_CMA_SYSFS is not set
 CONFIG_CONTIG_ALLOC=y
 # CONFIG_DMA_CMA is not set
+CONFIG_EXTRA_FIRMWARE="imx/sdma/sdma-imx7d.bin"
+CONFIG_EXTRA_FIRMWARE_DIR="firmware"
 CONFIG_FEC=y
 CONFIG_FSL_GUTS=y
 CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y

target/linux/imx/cortexa9/config-default

@@ -10,6 +10,8 @@ CONFIG_CLK_IMX6SX=y
 CONFIG_CMDLINE="pci=nomsi"
 CONFIG_CMDLINE_EXTEND=y
 CONFIG_E1000E=y
+CONFIG_EXTRA_FIRMWARE="imx/sdma/sdma-imx6q.bin"
+CONFIG_EXTRA_FIRMWARE_DIR="firmware"
 CONFIG_FEC=y
 CONFIG_FSL_GUTS=y
 CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y