update comment for unsupported synokernel packages

Author: hgy59

spk/synokernel-cdrom/Makefile

@@ -15,8 +15,11 @@ CHANGELOG = "1. Support DSM-7.1 and DSM-7.2"
 
 UNSUPPORTED_ARCHS = $(PPC_ARCHS)
 # archs with kernel 5.x fail to build
+# error: Cannot generate ORC metadata for CONFIG_UNWINDER_ORC=y, please install libelf-dev, libelf-devel or elfutils-libelf-devel
+# with installation of elfutils and libelf-dev to the development environment,
+# it further fails with error: pointer may be used after ‘realloc’ [-Werror=use-after-free]
 UNSUPPORTED_ARCHS += epyc7002 rtd1619b
-# we only have northstar for SRM 1.2, but this fails with:
+# we only have ipq806x for SRM 1.2, but this fails with:
 # /usr/bin/ld: scripts/dtc/dtc-parser.tab.o:(.bss+0x10): multiple definition of `yylloc'; scripts/dtc/dtc-lexer.lex.o:(.bss+0x0): first defined here
 REQUIRED_MIN_SRM = 1.3
 

spk/synokernel-usbserial/Makefile

@@ -20,8 +20,11 @@ CHANGELOG = "1. Support DSM-7.1 and DSM-7.2"
 
 UNSUPPORTED_ARCHS = $(PPC_ARCHS)
 # archs with kernel 5.x fail to build
+# error: Cannot generate ORC metadata for CONFIG_UNWINDER_ORC=y, please install libelf-dev, libelf-devel or elfutils-libelf-devel
+# with installation of elfutils and libelf-dev to the development environment,
+# it further fails with error: pointer may be used after ‘realloc’ [-Werror=use-after-free]
 UNSUPPORTED_ARCHS += epyc7002 rtd1619b
-# we only have northstar for SRM 1.2, but this fails with:
+# we only have ipq806x for SRM 1.2, but this fails with:
 # /usr/bin/ld: scripts/dtc/dtc-parser.tab.o:(.bss+0x10): multiple definition of `yylloc'; scripts/dtc/dtc-lexer.lex.o:(.bss+0x0): first defined here
 REQUIRED_MIN_SRM = 1.3