fsl_esdhc: Add the workaround for erratum ESDHC-A001 (enable on P2020)

Data timeout counter (SYSCTL[DTOCV]) is not reliable for values of 4, 8,
and 12. Program one more than the desired value: 4 -> 5, 8 -> 9, 12 -> 13.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/arch/powerpc/include/asm/config_mpc85xx.h b/arch/powerpc/include/asm/config_mpc85xx.h
index 9919d97..c771a4b 100644
--- a/arch/powerpc/include/asm/config_mpc85xx.h
+++ b/arch/powerpc/include/asm/config_mpc85xx.h
@@ -131,12 +131,14 @@
 #define CONFIG_SYS_FSL_NUM_LAWS		12
 #define CONFIG_SYS_FSL_SEC_COMPAT	2
 #define CONFIG_SYS_FSL_ERRATUM_ESDHC111
+#define CONFIG_SYS_FSL_ERRATUM_ESDHC_A001
 
 #elif defined(CONFIG_P2020)
 #define CONFIG_MAX_CPUS			2
 #define CONFIG_SYS_FSL_NUM_LAWS		12
 #define CONFIG_SYS_FSL_SEC_COMPAT	2
 #define CONFIG_SYS_FSL_ERRATUM_ESDHC111
+#define CONFIG_SYS_FSL_ERRATUM_ESDHC_A001
 
 #elif defined(CONFIG_PPC_P2040)
 #define CONFIG_MAX_CPUS			4