arm64: zynqmp: Remove xilinx_zynqmp_mini_emmc/qspi.h configs

The commit eaf6ea6a1dc1 ("Migrate CUSTOM_SYS_INIT_SP_ADDR to Kconfig using
system-constants.h") moved custom init stack pointer address to Kconfig
which ends up in situation that xilinx_zynqmp_mini_emmc/qspi.h are not
needed anymore. That's why remove files and move defconfigs directly to
xilinx_zynqmp_mini.h configuration.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/61ae40cf63aabd08adb386c870d3392b0b606fc9.1674040373.git.michal.simek@amd.com
diff --git a/configs/xilinx_zynqmp_mini_qspi_defconfig b/configs/xilinx_zynqmp_mini_qspi_defconfig
index 7ef62db..046cbcf 100644
--- a/configs/xilinx_zynqmp_mini_qspi_defconfig
+++ b/configs/xilinx_zynqmp_mini_qspi_defconfig
@@ -1,5 +1,5 @@
 CONFIG_ARM=y
-CONFIG_SYS_CONFIG_NAME="xilinx_zynqmp_mini_qspi"
+CONFIG_SYS_CONFIG_NAME="xilinx_zynqmp_mini"
 CONFIG_SYS_ICACHE_OFF=y
 CONFIG_ARCH_ZYNQMP=y
 CONFIG_TEXT_BASE=0xFFFC0000